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What does it mean if the chlorine test turns orange?
 452
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What colour clothing should you wear in the desert?
259
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A solution has a pH of 5.4. Write the formula you will use to calculate the [H ] and then show all your work leading to the determination of [H ]?
217
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How to remove any stains on your G shcok?
200
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What happens when you add HNO3 to a solution that has NH3 in it and why does this happen?
162
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What does it mean when skin turns yellow around a new tattoo?
159
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I know the water in the pool turned orange when i added clorine now how do i get it back to clear agin?
112
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Why does sweat dry white?
104
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Which substance is a conductor of electricity liquid phase but not in the solid phase?
100
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Why does pool water turn brown when chlorine added?
100
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When a zinc strip is placed in a copper sulfate or copper chloride solution?
100
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Will hydrogen peroxide help with ringworm?
100
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What new substances are formed when a nail and steel wool react with CuCl2?
100
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How to investigate ph changes that take place when neutralisation reactions occur between two acids and a base?
100
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What causes bubbles in the following reaction 2 H2O2 C (%u2192 catalase) 2H2O O2?
96
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What is the two acids and base needed for neutralisation during a ph change?
96
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I need help with my chemistry lab?
92
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What happens when hydrogen peroxide is added to ground liver and sand?
90
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What happens if we add hot water to plastic water bottles?
89
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What does the equation 2H2O2 2H2O O2 tell you?
88
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Is a soda turning flat a chemical change?
88
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What evidence of a chemical reaction when dropping an alka selter tablet into a glass of water?
84
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Write i) a full equation, ii) the ionic equation for the reaction between nickel (ii) carbonate & dilute hydrochloric acid?
82
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What happens when you exhale into bromothymol blue?
82
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What happens when we mix NaHCO3 C6H8O7 and water?
81
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What type of reaction happens when heating CuSO4 X 5H2O?
81
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What happens when you put bromothymol blue in NaOH?
81
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What happens when you put hydrogen peroxide with iron III nitrate?
81
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What is the chemical equation of CuSO4 5 H2O?
81
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What kind of chemical reaction is dropping an Alka Seltzer tablet into a glass of water?
80
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Are changes in the color of litmus paper chemical or physical?
78
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Do substances that heat up quickly normally have high or low specific heat capacities?
78
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What color does phenol red change in photosynthesis?
78
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I have a question about the mass doe?
78
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What does ammonia in bromothymol blue indicator represent?
78
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What are the balanced equations in the copper cycle with al?
77
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If you spill household bleach on denim jeans is this change chemical or physical?
77
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When a strip of zinc metal is added to a test tube of hydrochloric acid the liquid forms bubbles and the test tube feels hot The bubbles are a resu?
77
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Does phenol red react with carbon dioxide?
77
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How many grams of sodium sulfide are formed if hydrogen sulfide is bubbled into a solution containing of sodium hydroxide assuming that the sodium?
77
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Why does well water turn yellow when bleach is added?
77
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What are the products of CuSO4 5H2O H2O?
77
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Why do acetic acid in bromothymol blue turn yellow?
77
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Are bubbles in a mixed solution chemical change?
77
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Why does my pool chlorine test turn red instead of yellow?
77
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If the color fade is it physical or chemical change?
77
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Why does a flame turn orange red when milk boils over?
77
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When the precipitate remaining in 2 after filtration is treated with aqueous NH3 the precipitate completely dissolves What conclusions can be draw?
77
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When HCl is mixed with a solution of ZnCl2 no reaction is observed Therefore which is more reactive Zn or H2?
77
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Which substance has a higher melting point and conduct?
77
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What colour should a gas boiler flame be?
77
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When water is heated bubbles form in the water is this evidence of a chemical reaction why?
77
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Is mixing oil and vinegar together a chemical change?
77
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What evidence supports that a chemical reaction is taking place?
77
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When the formula equation CuSO4 aq Fe s Fe2 SO4 3 aq Cu s is correctly balanced the coefficient of CuSo4 aq is?
77
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What happened when the glowing was inserted in the test tube containing hydrogen peroxide and manganese dioxide What substance was being produced Wa?
77
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Does a precipitate form when CuSO4 AND NA2CO3 REACTS?
77
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What happens when magnesium mixed with dilute acid?
77
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What does Na2S and HNO3 react to make?
77
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Why are aqueous copper II solutions blue?
77
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Can i use hydrogen peroxide on burn?
77
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What happens when manganese dioxide is mixed with water?
77
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Is bubbles forming in a soda bottle a chemical reaction?
77
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What is the evidence of a chemical reaction in burning a match?
77
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What would happen to raw chicken placed in hydrogen peroxide, and what isthe chemical reaction?
75
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Which of the following process are spontaneous the melting of ice cubes at 10 C and 1 atm pressure?
74
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How to remove color fade from clothes?
74
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What happens when copper II chloride is dissolved in water?
72
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| |
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Bromthymol blue and carbon dioxide?
71
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| |
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When strongly heated Magnesium formed a cryalline deposit on the walls of a sealed reaction vessel?
71
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If a solution remains unsaturated,mineral crystals may precipitate. true or false?
68
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What is the net ionic equation for ammonium hydroxide reacting with iron III chloride?
64
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| |
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Why does KCl only conduct electricity in the liquid state?
64
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Why does the solution color turn blue to clear in Al CuCl2?
64
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What happens when a piece of aluminum is placed in hydrochloric acid?
63
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What turns red iwhen added to sea water?
63
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| |
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Is water and copper chloride a physical reaction?
63
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Is fe scn fescn an exothermic reaction?
62
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When heating copper carbonate we observe?
62
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| |
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What would happen if you added silver nitrate to the solution of sodium chloride?
62
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| |
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What is the balanced equation for the reaction of cuo h2so4 gives cuso4 5h2o?
62
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What chemical reaction would you see if you dropped a alka seltzer in water?
62
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| |
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What happens when you put iron in cucl2 solution?
62
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| |
|
|
I need a Hypothesis for my science project?
62
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| |
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Is making tea a physical or chemical change?
62
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| |
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What is the balanced net ionic equation for the following reaction H3PO4 aq Ca OH 2 aq Ca3 PO4 2 aq H2O l?
62
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What is the tax rate on 125 000?
62
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| |
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How to remove yellow mucus stains from hankies?
61
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| |
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Can you identify a mixture of metals using the flame test?
60
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What type of chemical reaction is a match?
60
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| |
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Which of the four chemical reactions makes a popping sound?
60
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What happens to an elodea leaf when in phenol red solution?
60
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What chemicals get created when bromothymol blue and hydrochloric acid are mixed?
60
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Why does adding water to anhydrous copper sulfate cause it to heat up?
60
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| |
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What solid is formed from two aqueous solutions in a reaction?
59
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When a piece of magnesium ribbon is put into an aqueous?
59
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| |
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What products are produced when hydrogen peroxide is decomposed?
59
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| |
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|
When AgNO3 and NH3 mixed what color changes observed?
59
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| |
|
|
How to make cobalt chloride paper blue?
59
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| |
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Why is manganese dioxide breaking down the hydrogen peroxide?
59
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| |
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|
Why does my hot tub water turn brown after adding chlorine?
59
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| |
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What isthe name given to either magnesium or hydrochloric acid in the case ofthe chemical reaction?
59
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| |
|
|
How much silver & how much copper is inside a 50" flat screen tv?
59
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| |
|
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What is the balanced chemical equation for Hydrogen peroxide H2O2 decomposes to produce water and oxygen?
59
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| |
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What does it mean when yellow gold turns skin black?
59
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| |
|
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What type of reaction will occur between H2SO4 and NaOH?
59
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| |
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What color will a solution be if we add h2so4 to k2cro4 solution?
59
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| |
|
|
What would happen if methylene blue and potassium permanganate were to meet?
59
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| |
|
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What does bubbles mean during a chemical reaction?
59
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| |
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What evidence of a chemical reaction might you see in dropping an alka seltzer tablet into a glass of water?
59
|
| |
|
|
What color was the BTB solution before you exhaled into the tube?
59
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| |
|
|
What would happen if you exhaled into phenol red?
59
|
| |
|
|
What chemical gas causes bubbles in water?
59
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| |
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When dissolved in water potassium chloride is a good conductor of electricity while sold potassium chloride is not explain?
59
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| |
|
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What forms when two colorless solutions are mixed?
59
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| |
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|
Is sodium chloride good conductor?
59
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| |
|
|
What happens if somebody carbonates bromothymol blue?
59
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| |
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|
If 495 g of NaOH is dissolved to a final total volume of 20.0 L, what is the molarity of the solution?
59
|
| |
|
|
At a deep-sea station 200.m below the surface
of the Pacific Ocean, workers live in a highly
pressurized environment. How much gas at
STP must be c?
59
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| |
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|
Is distilled water mixed with copper II sulfate a chemical change?
59
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| |
|
|
Why the enzyme in liver can react faster than potato?
59
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| |
|
|
What happen bromothymol blue add to sodium hydroxide hydrochloric acid and bromothymol?
59
|
| |
|
|
One reaction that produces hydrogen gas can be represented by the following unbalanced chemical equation.
Mg(s) HCl(aq)-->MgCl2(aq) H2(g)?
59
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| |
|
|
How much to dilute bleach to use on colors?
59
|
| |
|
|
Which of the following materials should be made from good conductors?
59
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| |
|
|
Why does CO2 cause phenol red to change to yellow?
59
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| |
|
|
What does it mean to be bubbled into a reaction?
59
|
| |
|
|
When is sodium ion a negative flame test?
59
|
| |
|
|
What is the function purpose of the bromthymol blue in the CO2 experiment?
59
|
| |
|
|
What do bubbles forming in a chemical reaction mean?
59
|
| |
|
|
What happens when heating manganese sulfate with water?
59
|
| |
|
|
Do unsaturated fats turn bromine water orange?
59
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| |
|
|
When butanoic acid reacts with sodium borohydride 1 butanol is not obtained?
59
|
| |
|
|
Is calcium a poor conductor of electricity?
59
|
| |
|
|
Does aspirin whiten clothes?
59
|
| |
|
|
What products are formed when a solution of hydrogen peroxide is catalytically decomposed?
59
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| |
|
|
What happens when catalase is combined with hydrogen peroxide?
59
|
| |
|
|
Why does aluminum in copper chloride and water turn red?
59
|
| |
|
|
What does bubbling in a reaction indicate?
59
|
| |
|
|
What color does the liquid indicator on an iPhone 4 turn?
59
|
| |
|
|
Balanced equation antimony plus oxygen yields tetrantimony hexoxide?
59
|
| |
|
|
What happens when the butane gas reacts with oxygen?
59
|
| |
|
|
What happens to the zinc in the hydrogen generation experiment?
59
|
| |
|
|
When silver nitrate and copper react what causes the solution to turn blue?
59
|
| |
|
|
What has occurred between magnesium and hydrochloric acid?
59
|
| |
|
|
When water is boiled in a pot it bubbles is that a chemical?
59
|
| |
|
|
Why does no reaction occur when A piece of aluminum metal is placed in aqueous KCl?
59
|
| |
|
|
Why does CO2 cause the phenol red a pH indicator to change color?
59
|
| |
|
|
What happens when copper II oxide will meet sulfuric acid and react to form copper II sulfate?
59
|
| |
|
|
Is the formation of Fe SCN 3 endothermic or exothermic?
59
|
| |
|
|
Is adding yeast to warm water a chemical or physical change?
59
|
| |
|
|
What would you expect to happen when a strip of lead is placed in an aqueous solution of magnesium nitrate 3F?
59
|
| |
|
|
What happens when 2Al 6HCl yields 2AlCl3 3H2?
59
|
| |
|
|
What is the difference between phenol and methyl red?
59
|
| |
|
|
What id the formula for alka seltzer and water?
59
|
| |
|
|
Why does lighted splint pop when put in hydrogen?
59
|
| |
|
|
What is the oxidizing agent in the following chemical reaction 5H2O2 2MnO4 6H?
59
|
| |
|
|
Why should you dilute bleach when cleaning?
59
|
| |
|
|
What kind of reaction is heating CuSO4 H2o?
59
|
| |
|
|
Why would a mixture turn cloudy and white when mixed together?
55
|
| |
|
|
When combining sodium carbonate and HCl and it produces a gas and flame why does the flame go out?
55
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| |
|
|
Why would salted water cause cooking flame to turn orange?
55
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| |
|
|
The question is from my lab review and since didn`t do the lab this review still needs to be turned in. 1. CO2 H2O %u2192 H2CO3 %u2192 H HCO3-? a?
53
|
| |
|
|
How do I remove nitric acid stains from a gray wool jacket?
53
|
| |
|
|
When HNO2 is dissolved in water it partially dissociates according to the?
53
|
| |
|
|
Which reagent is in excess i e not the limiting reagent in the reaction between copper II chloride and zinc?
53
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| |
|
|
Why is teh acid in the reaction necessary why can the solution of copper sulfate simply be made with water?
53
|
| |
|
|
What are the physical and chemical changes of breakfast?
50
|
| |
|
|
Why does copper sulfate turn blue when zinc is added?
50
|
| |
|
|
Why do substances with low specific heats make good conductors?
50
|
| |
|
|
Which gas extinguishes a burning match stick?
49
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| |
|
|
Why does my eye burn really bad when i put my contact in my left eye?
49
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| |
|
|
If the first set of reactants is nh4oh and kal so4 2 and the second set of reactants is mgso4 and nh4oh is either reaction considered a synthesis rea?
48
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| |
|
|
Why does janus green and potassium permanganate move faster at 0 celeus?
48
|
| |
|
|
What do ammonia drops represent?
48
|
| |
|
|
Complex ion formation is exothermic, right?
48
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| |
|
|
How might the normal color ofa flame mask the true color of a salt during a flame test?
48
|
| |
|
|
Where does ray ban get its plastic?
45
|
| |
|
|
Why is a foam layer and indication of hydrolysis of H2O2?
45
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| |
|
|
How many electrons can a carbon atom share 1 point?
45
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| |
|
|
Why was no change observed with the lime water and buring splint on the reaction copper(ii) oxide and sulphuric acid?
44
|
| |
|
|
What evidence of a chemical reaction might you see in rusting of an iron nail?
44
|
| |
|
|
What chemical will eat through rubber?
44
|
| |
|
|
What happens when you pee in bleach?
43
|
| |
|
|
If you had a test tube containing phenol red and exhaled into it why is it that the color changes?
42
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| |
|
|
Explain what is in a buffer.Discuss the function of a buffer.How will pH change when small amounts of acids or bases are added to the buffer solution?
41
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| |
|
|
What happens if you heat ammonium chloride in a test tube?
40
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| |
|
|
Why does hydrogen gas make a pop with a burning splint?
39
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| |
|
|
When water boils over a stove the flame turns yellow?
38
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| |
|
|
What causes the bubbles to produce during reaction?
38
|
| |
|
|
Why does phenol red turn yellow?
38
|
| |
|
|
What happens when you mix potassium iodide and hydrogen peroxide?
38
|
| |
|
|
Why is molten sodium chloride a good conductor of electricity?
37
|
| |
|
|
Why does alka seltzer work faster in hot water?
37
|
| |
|
|
What chemical turns dishes black from water?
36
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| |
|
|
Why does alka seltzer and water blow up a balloon?
36
|
| |
|
|
What does it mean when bubbles form in water sitting out on counter?
36
|
| |
|
|
Why was the sample of copper chloride hydrate heated What changes did you observe during the heating Were the changes chemical or physical or both?
36
|
| |
|
|
What is the minimum temprature your house should be?
35
|
| |
|
|
What happens in adding water to anhydrous copper sulfate?
35
|
| |
|
|
Why does aluminum react with CuCl2?
35
|
| |
|
|
What is the purpose of adding manganese dioxide to hydrogen peroxide?
35
|
| |
|
|
What is the product of butanoic acid and sodium borohydride?
34
|
| |
|
|
If a solution gave a positive result when a few drops of 0 1M KSCN are added what ion would?
34
|
| |
|
|
What would one see if nickel was warmed with dilute sulphuric acid?
34
|
| |
|
|
What would you see if nickel 2 carbonate reacts with dilute hydrochloric acid?
34
|
| |
|
|
What would happen when you put sodium bicarbonate in the yellow flame?
34
|
| |
|
|
Is the formation of the complex ion FeSCN 2 endothermic r exothermic?
34
|
| |
|
|
What happen to the glowing splint when inserted in heating PbO2?
32
|
| |
|
|
What happen when inserte glowing splint into a heat reddish PbO2?
32
|
| |
|
|
How to whiten colored plastic?
32
|
| |
|
|
If the initial volume of the is 1 6 what total amount of in moles is formed in the first 50 of reaction?
31
|
| |
|
|
What chemical reaction occurs when dropping an alka seltzer tablet into a glass of water?
30
|
| |
|
|
Why does ammonia turns red litmus paper to blue?
29
|
| |
|
|
1. Write the equation for the decomposition of the hydrate, CuSO₄*XH₂O?
29
|
| |
|
|
Where can i get sample module about acid and base and neutralization reaction for grade 7?
28
|
| |
|
|
If an iron nail is placed into a copper sulfate solution after awhile the container feels warm does this reaction absorb or release energy?
28
|
| |
|
|
If energy was added to remove the water from salt then what would happen energetically if water was added to the anhydrous salt?
28
|
| |
|
|
What happens when you heat ammonium carbonate?
27
|
| |
|
|
Why does the water turn blue in a reaction forming copper?
27
|
| |
|
|
Is sodium a good conductor of electricity?
26
|
| |
|
|
Is paint drying a chemical change?
26
|
| |
|
|
Why does hot tub water turn yellow with bromine?
26
|
| |
|
|
What three properties distinguish between table salt table sugar and sand?
26
|
| |
|
|
What is carbon dioxide at zero degrees celcius?
26
|
| |
|
|
What energy is used to break down copper chloride?
26
|
| |
|
|
What color will a egg white turn when iodine is added to it?
26
|
| |
|
|
Why is flame test invalid?
26
|
| |
|
|
How to obtain copper ii sulfate crystals from copper ii nitrate?
26
|
| |
|
|
Why fingers turn yellow while working with nitric acid?
26
|
| |
|
|
Does alka seltzer in water dissolve faster in cold water?
26
|
| |
|
|
Why Does Aluminium Not React WIth Acids Or Copper Sulphate Solution?
26
|
| |
|
|
Why was NH3 was added to the copper solutions?
26
|
| |
|
|
What happens when you put lead in zinc nitrate?
26
|
| |
|
|
Which crystalline solids are good conductors of electricity?
26
|
| |
|
|
Is mixing lemon juice and ice chemical or physical?
26
|
| |
|
|
Is adding lemon to your tea a chemical or physical change?
26
|
| |
|
|
What type of change is it when sugar is heated it turns into carbon and water?
26
|
| |
|
|
If there is a color change in a reaction does that mean their is a precipitate?
26
|
| |
|
|
Which solid conducts electricity most efficiently sugar graphite?
26
|
| |
|
|
Why does phenol red turn color when blow into it?
26
|
| |
|
|
What happens to a glowing wooden splint in the presence of hydrogen gas?
26
|
| |
|
|
What evidence indicates that a double replacement reaction has occurred between two compounds dissolved in waterdouble replacement reaction calculator?
26
|
| |
|
|
What would happen if you mixed lead nitrate solution with sodium chloride?
26
|
| |
|
|
What happens when you add hydrochloric acid to copper?
26
|
| |
|
|
What was the purpose of the manganese IV oxide added to the hydrogen peroxide in the generation of oxygen?
26
|
| |
|
|
How much water could 25 grams of anhydrous copper sulfate absord?
26
|
| |
|
|
Why is bleaching a chemical change?
26
|
| |
|
|
How fast does water flow from a hole at the bottom of a very wide deep storage tank filled with water Ignore viscosity?
26
|
| |
|
|
How to stop white paint going yellow?
26
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What would happen if i put hydrogen peroxide in a cow liver?
26
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What evidence of a chemical reaction does dropping an alkaseltzer tablet into a glass of water give?
26
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Copper is added to a solution of nitric acid. The solution becomes hot and changes from colorless to dark blue. What is the best explanation for the c?
26
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Which of the following statements is not true about a 2 for 1 split?
26
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What would you expect to see if you mix lead nitrate V with sodium chloride?
26
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What colour does bromothymol blue turn when mixed with sodium bicarbonate and calcium chloride?
26
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When a iron nail is placed in copper sulfate does the reaction absorb or release energy?
26
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What causes one eye to water burn and hurt?
26
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Is bleach cleaning your clothes chemical or physical change?
26
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Will the used remaining manganese dioxide and the test tube containing hydrogen peroxide still have a chemical reaction?
26
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What happens when calcium carbonate and hydrochloric acid react with a burning splint?
26
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How will adding kool aid affect the water s boiling point?
26
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How deep is 3atm in meters?
26
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What gas is produced when copper II sulphate pentahydrate is heated?
26
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What color is copper ii chloride in water?
26
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Chem equation? bubbling hydrogen sulfide gas through manganese (II) chloride dissolved in water results in formation of the precipitate manganese (II)?
26
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Is fescn2 an endothermic reaction?
26
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Is heating copper carbonate a chemical or physical change?
26
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Why did we test for the presence of oxygen before and after adding the manganese dioxide?
26
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What happens when you mix copper chloride water and aluminum foil?
26
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If cells are placed in a strong sugar solution water will pass from the cells to the sugar solution Why?
26
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Which of the following statements is true among all types of passive diffusion a Proteins are needed to transport molecules across the membrane b?
26
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Why does zinc turn blue?
26
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When hydrogen sulfide H2S gas is bubbled through a solution of lead II nitrate Pb NO3 2 a black precipitate of lead II sulfide PbS forms and?
26
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What gas is produced by heating copper II sulfate pentahydrate?
26
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What happens when you add manganese and hydrochloric acid?
26
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Which liquid solution conducts electricity the best?
26
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Why does nitric acid turn blue when mixed with silver?
25
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My finger smells like rusted iron after I rub my eyes?
25
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When burning candle is brought near the test tube?
25
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Why when acid spills on jeans it is a chmeical change?
25
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What type of reaction is h2o2 and heat?
25
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Does calcium sulfate conduct?
25
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Test for oxygen and carbon dioxide with the glowing splint?
25
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Why does alkar seltzer disolves faster in hot water?
25
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How can i measure the stains removed in a cloth without using colorimeter?
25
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What happens when sucrose solution is added to chicken liver?
23
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Is spilled gasoline leaving an odor a physical or chemical change?
23
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Why does your cum go very sticky when it contacts water?
23
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What happen when potassium permanganate added with metylbenzene and heated?
22
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What happens when you react iron with copper chloride?
22
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Why will a flame burn out in a test tube with sodium carbonate and hcl?
22
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How many liters of oxygen gas can be produced as STP from the decomposition of 0.250 L of 3.00 M H2O2 in the reaction according to the chemical equati?
22
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Is making fresh lemonade a chemical change?
21
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Is the formation of iron thiocyanate complex ion an exothermic or endothermic reaction?
21
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How to remove water fog inside a watch?
21
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What happens to the particles in the reaction between an iron nail and copper sulphate?
21
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What is the net ionic equation of the reaction of zncl2 with naoh?
21
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What color is the reaction Fe SCN?
21
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How long will i spot after a endomyometerial rection?
20
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Would happen to red blood cells when placed in 3 3 glucose solution?
20
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What is the chemical equation for H2O CaO?
20
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When do CaCO3 conduct electricity?
19
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Why does bromothymol blue change color when blown into?
19
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What happens when metal nickel is heated in air?
19
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Why do we need to cool the copper oxide before adding sulfuric acid?
19
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What visible evidence is there to confirm the limiting reagent and excess reagent?
19
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What dose it mean wien you wound turns a light blue?
19
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What kind of propities do the elements have?
19
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Why does my spa water turn yellow when adding chlorine?
19
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What evidence of a chemical reaction might you see in te following case dropping an alka seltzer tablet into a glass of water bleaching a stain bur?
18
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The question is when cooking spaghetti and NaCl and it boils over into a gas flame, why does the flame turn orange?
18
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Is there a substitute for urea when tie dyeing clothes?
18
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What color should the flame be in a gas fireplace?
18
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How do unicellular and other small organisms get oxygen to where it is needed and get rid of waste materials like carbon dioxide?
18
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What is the chemical equation for the reaction of catalase with hydrogen peroxide and manganese dioxide?
17
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What is produced in MnO2 H2O2?
17
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Can we drink nahco3?
17
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What happens when you react aluminum metal with copper chloride?
17
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Why salt turns flames orange?
17
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What of the origional copper powder did not react when you heated it?
17
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What is the pH of a buffer solution that is 46 acetic acid and 54 sodium acetate?
17
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What the physical change occurs in carbon dioxide snow disappear?
17
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What is the purpose of grinding the liver with the wash sand thrichloroacetic acid?
17
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How to graph an experiment involving stain removers?
17
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What are the roles performed by sodium sulfide and ethanol in catalase and amylase respectively?
17
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Which types of crystalline solids are usually good conductors of heat and electricity Select all that apply 13 3 solid ionic solids ionic solids?
17
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What is the color changed when hcl is added to nh4cl?
17
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How to remove silver plate from copper?
17
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What happenes splint test hydrogen?
17
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What will be the difference with a cup placed inside and one placed outside overnight after dew has fallen?
17
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What causes water to turn yellow or orange in a well?
17
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Pants from jcpenny smell like sulfer. what can i do?
17
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What are 5 kinds of chemical change?
17
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Is it safe to wash my teeth in water with a copper blue content?
16
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Write the equation for the composition of the hydrate, CuSO4 xH2O?
16
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I need the hypothesis and data?
16
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How many grams of a 16g sample of cesium?
16
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I put liquid blue to make my clothes whiter. Some of the liquid got on the shirt and i can`t get it out. Anysuggestions?
16
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What forms when two liquids are mixed in a chemical reaction?
16
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How to get calcium off boots?
16
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|
The chlorine test for my pool water produced a brown color on top of a light green color. What does that indicate? The ph is 7.2?
16
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Is copper and silver nitrate a physical or chemical change?
16
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Can you get cancer from leaving water bottles out in the heat?
16
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What is the chemical reaction when h202 is heated?
16
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What happens when you put antiacid in phenol red solution?
16
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What are two changes does sugar undergo when heated a spoone over a flame?
16
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What happens when sodium hydrogen carbonate and hydrochloric acid are mixed?
16
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|
Why copper blue solution turns clear?
16
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|
Which of the following is a molecular substance whose aqueous solution carries an electric current?
16
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|
Why is a 1 M Nacl solution a conductor of electricity?
16
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| |
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|
Is bleach turns hair yellow a physical change?
16
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| |
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|
Test gor oxygen and carbon dioxidewith the growing splint?
16
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| |
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|
What causes the reaction when alcohol detergent bleach and water are mixed?
16
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| |
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Why does copper stink?
16
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| |
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|
How much is cinemarks popcorn?
16
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| |
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|
How does the entropy of the system change in the following processes a the melting of ice cubes at 10 and 1 pressure b separating a mixture of and?
16
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| |
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|
What happens when you add alka seltzer (gas) to limewater?
15
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| |
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|
Is heating copper sulfate and then water added physical or chemical?
15
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| |
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|
What type of reaction shaken soda?
15
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| |
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|
How to bleach khakhi?
15
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| |
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|
What kind of reaction stays clear and bubbles?
15
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| |
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|
Why does liver and H2O2 react better than potato and H2O2?
15
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| |
|
|
What happen if i mix nh4cl and di water?
15
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| |
|
|
What evidences of chemical change for bleaching a stain?
15
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| |
|
|
When heat is added to hydrochloric acid why is there a pop sound?
15
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| |
|
|
Why does blue chloride paper turn pink?
15
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| |
|
|
What colour would sodium turn the flame in a flame test?
15
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| |
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|
What type of solid is a nonconductor of electricity but a conductor when dissolved in water?
15
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| |
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|
When A Piece Of Magnesium Metal Is Added To Dilute Hydrochloric Acid Fizzing Occurs And Hydrogen Gas Is Realised From The Mixture The Fizzing Is Evi?
15
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| |
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|
Is bleach taking the stain out of fabric a physical or chemical chnage?
15
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|
The Name Given To Either Magnesium Or Hydrochloric Acid In This Case Is What?
15
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| |
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|
Is there a way to turn a black shirt brown without bleach?
15
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| |
|
|
What is a summons for unknown tennets?
15
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| |
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|
When we put zinc metal into blue copper sulfate solution a pink solid forms and the solution becomes much lighter what is happening?
15
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| |
|
|
When butanoic acid is treated with sodium borohydride what is the reaction?
15
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| |
|
|
When a dead coral reef is pounded by waves into beach sand does is it a chemical or physical change?
14
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|
What is the limiting reagent in the copper chloride and zinc reaction sclient psy?
14
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| |
|
|
What is the tax rate on 32 500?
14
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| |
|
|
How to heal wart burnt by nitrogen?
14
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| |
|
|
What happens when we react sulphuric acid with copper
what happens when we react copper with sulfuric acid?
14
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| |
|
|
What can i do after the certifcate is activated?
14
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| |
|
|
If a lemon is added in a tea and it makes it cloudy is this a chemical change?
14
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| |
|
|
Why zinc solutions colorless?
14
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| |
|
|
When heating hot water what would turn the water green and pink color?
14
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| |
|
|
Why does my washcloth change colors?
14
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| |
|
|
Does iodine change the color of an egg white?
14
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| |
|
|
Would clorox bleach eat through a plastic bag?
14
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| |
|
|
What type of reaction is Oxygen filled syringe and lit splint?
14
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| |
|
|
How long does it take for bromothymol with a presoaked pinto bean to change color?
14
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| |
|
|
When magnesium is added to dilute sulphuric acid is it a physical or chemical change that takes place?
14
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| |
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|
What does the Bromthymol blue indicator test prove?
14
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| |
|
|
What is the smell when sugar heated in a test tube?
14
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| |
|
|
What color should the flame in my gas firelace be?
14
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| |
|
|
What color does bromthymol solution change to if you breathe on it?
14
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| |
|
|
What did observe when carbon dioxide is added to BTB?
14
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| |
|
|
Is heating copper II sulphate crystals a chemical change?
14
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| |
|
|
What happens when you add a burning splint to co2?
14
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| |
|
|
What type of chlorine can whiten the skin if being added to tap water?
14
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| |
|
|
Why is a boiled livers reaction rate low?
13
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| |
|
|
Is H2O solid or NaCl liquid a better conductor of electricity?
13
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| |
|
|
Why NaCl flame is yellow?
13
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| |
|
|
Why NaCl is yellow flame??Help me please?
13
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| |
|
|
What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 7 5?
13
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| |
|
|
If milk was boiling on a gas and if boiled over what color would oyu expect to see?
13
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| |
|
|
What would happen if you put potassium in hot and cold water if left for half an hour?
13
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| |
|
|
If sulphur turns red when heated is that a chemical change or a physical change?
13
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| |
|
|
Why is my arm stripey hydrogen peroxide?
13
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| |
|
|
What are three physical properities of a crushed can?
13
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| |
|
|
What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 9 1?
13
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| |
|
|
Why does phenol red change color after exposure to air?
13
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| |
|
|
Which substance is a conductor of electricity nacl s nacl l c6h12o6 s c6h12o6 l?
13
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| |
|
|
When zinc is droppen in copper sulphate then what happens and why?
13
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| |
|
|
What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 9 1 atm?
13
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| |
|
|
What are the two kinds of aqueous solution?
13
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| |
|
|
How copper sulphate affects the reaction between magnesium and hydrochloric acid?
13
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| |
|
|
How do I get heat related yellowing off white metal?
13
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| |
|
|
How to clean white towel with clorox bleach?
13
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| |
|
|
What happens when iron and copper II chloride react?
13
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| |
|
|
If 10k gold gets stained with nitric acid how do you get the color back?
13
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| |
|
|
What happens when an acid tablet is in water?
13
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| |
|
|
Why is crushing a sugar cube a physical change?
13
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| |
|
|
If you put food coloring in water is it chemical or a physical change?
13
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| |
|
|
Is steel wool forming blue black beads when heated a physical or chemical change?
13
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| |
|
|
What happens to the orange colour of bromine wter?
13
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| |
|
|
Is CuSO4 combustable?
13
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| |
|
|
What reaction happens when you add liver and sand to a hydrogen peroxide solution?
13
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| |
|
|
What happens when h2 is added to a burning splint?
12
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| |
|
|
Why does potassium pemanganate dissolve faster in hot water?
12
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| |
|
|
Is using bleach to remove a stain from a shirt a chemical or physical change?
12
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| |
|
|
Give an equation and explain its relevance when acetic acid (excess) and isopentyl alcohol is added with sodium bicarbonate?
12
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| |
|
|
Why is there a popping noise if you put fire near a tube of hydrogen gas?
12
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| |
|
|
What is the complete ionic equation of Zn CuSO4?
12
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| |
|
|
What gas is produced when there is a popping noise in the test tube?
12
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| |
|
|
Why does cobalt chloride paper turn pink and equation?
12
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| |
|
|
Why does bromothymol blue turns yellow?
12
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| |
|
|
When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide the reaction forms sodium sulfide and water?
12
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| |
|
|
Why is copper carbonate used with sulfuric acid?
12
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| |
|
|
What is the net ionic reaction when you add Li3PO4 to CaSO4?
12
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| |
|
|
Why well water turns yellow after bleach treatment?
12
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| |
|
|
Is applying hydrogen peroxide a chemical change?
12
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| |
|
|
What type of change is heating copper carbonate?
12
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| |
|
|
How can you maxamize the formation of iron thiocyanate?
12
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| |
|
|
What does calcium chloride and phenol red create?
12
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| |
|
|
What pH changes take place when neutralisation reactions occur between two named acids and a named base?
12
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| |
|
|
Why do we add water in the alcohol in a chemical reaction?
12
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| |
|
|
What does it mean if cobalt chloride paper turns white?
12
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| |
|
|
Is melting copper a physical change or chemical change?
12
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| |
|
|
Is tie dying a shirt a chemical or physical change?
12
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| |
|
|
Why do you see bubbles when you react copper carbonate with an acid but not when you use copper oxide?
12
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| |
|
|
Why is the skin turns to yellow when accidentally spilled?
12
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| |
|
|
If a solid copper sulfate is mixed with water is it a mixture?
12
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| |
|
|
What should be the outside temperature for a landlord to turn on the heat in NJ?
12
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| |
|
|
Is adding lemon juice to iced tea a physical or chemical change?
12
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| |
|
|
Is tie dye a chemical or physical change?
12
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| |
|
|
Does Mg NO3 2 H2so4 produce a reaction?
12
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| |
|
|
Why can liquid elements conduct electricity?
12
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| |
|
|
If you heat CuSO4 does it weight more?
12
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| |
|
|
What happens when a hydrate is heated to form a anhydrous material?
12
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| |
|
|
How can i make Na2S from H2S?
12
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| |
|
|
Why does bleach turn litmus paper white?
12
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| |
|
|
When solutions of strontium chloride and ammonium sulfate react which of the following is a spectator ion 1 strontium ion 2 sulfate ion 3 ch?
12
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| |
|
|
Hey, i have a question about biology. What kind of color change would occure if we put a plant into water and then put bromthymol blue inside?
12
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| |
|
|
Is flat coc COLa a physical or chemical change?
12
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| |
|
|
Why is potassium a better conductor than lithium?
12
|
| |
|
|
What chemical reation occurs when an Alka-Seltzer tablet is dropped in water?
12
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| |
|
|
What happens when you put a burning splint in Co2?
12
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| |
|
|
When the equation Zn CuSO4 ZnSO4 Cu is balanced the coefficient of zinc is?
12
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| |
|
|
What happens when you add hydrogen peroxide to sand?
12
|
| |
|
|
How deep is 20 meters of water?
12
|
| |
|
|
What is the chemical balancing equation for CuSO4?
12
|
| |
|
|
What is the purpose of grinding sand with diced potatoes in an experiment?
12
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| |
|
|
What happend to wooden splint when heated?
12
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| |
|
|
How to find the conductor of electricity in the periodic table calcium?
12
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| |
|
|
Chemical properties of drain cleaner?
12
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| |
|
|
Why is it problematic to write a rate law for the decomposition of H2O2 with MnO2 as a catalyst?
12
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| |
|
|
Is copper hydroxide chemical changed why?
12
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| |
|
|
What happens when you add water to colled anhydrous copper sulfate?
12
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| |
|
|
What happens when you add sand to ground up meat and add hydrogen pero?
12
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| |
|
|
WHAT CAUSES THE BUBBLES I THE MOSSY ZINC WITH DILUTE HYDROCHLORIC ACID?
12
|
| |
|
|
Is copper sulphate sodyum hydroxide?
12
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| |
|
|
What causes bubbles to form in the mossy zinc with dilute hydrochloric acid?
12
|
| |
|
|
Is solid calcium a good conductor of electricity?
12
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| |
|
|
What is the partial pressure of oxygen when this mixture is delivered at a total pressure of 9 5?
12
|
| |
|
|
Why does methylene blue diffuse through agar more than KMnO4?
12
|
| |
|
|
What happens when sodium hydrogen carbonate and hydrochloric acid burning splint?
12
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| |
|
|
Which elements have high melting point and are good conductors of electricity?
12
|
| |
|
|
Is mixing lemonade powder into water a chemical change?
12
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| |
|
|
Is tea leaves soaking in warm warter a physical change or a chemical change?
12
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| |
|
|
When copper is heated with an excess of sulfur copper 1 sulfide is formed?
12
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| |
|
|
Why does aqueous solution of copper chloride turn blue after adding water?
12
|
| |
|
|
Why add water to anhydrous sample?
12
|
| |
|
|
What is the balanced equation when aluminum reacts with copper chloride dihydrate?
12
|
| |
|
|
How do you know that MnO2 catalyzes the breakdown of hydrogen peroxide?
12
|
| |
|
|
What a balanced molecular overall ionic aqueous solution and phosphoric acid?
12
|
| |
|
|
What happens when we heat CuSO4 5H2O S?
12
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| |
|
|
Which would make an egg bounce coca cola vinegar or orange juice?
12
|
| |
|
|
Will copper react in a solution of magnesium nitrate?
12
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| |
|
|
When hydrogen sulfide gas is bubbled into a solution of sodium hydroxide, the reaction forms sodium sulfide and water?
12
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| |
|
|
Can you get sick from drinking water that s been in a bottle for a long time?
12
|
| |
|
|
Water turns white and cloudy when boiled?
12
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| |
|
|
Is making instant lemonade a physical or chemical change?
12
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What happens when a glowing splint inserts a test tube?
12
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How could a solution of copper chloride and water be separated into its starting substances?
12
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Does chlorine turn nails yellow?
12
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Will litmus solution ever bleach?
12
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When baking soda and vinegar combine they form gas bubbles the vinegar smell disappears and the mixture gets cold Has a chemical or physical react?
12
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What does h202 in naoh do?
11
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30k an hour 16.75 is that correct?
11
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Is spilling acid on jeans a chemical change?
11
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What two elements in group 14 on the periodic table are most likely to be malleable and good conductors of electrictiy?
11
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What evidence of a chemical reaction takes place in bleaching a stain?
11
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What happens when oxided copper is put into sulfuric acid?
11
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Helium is mixed with oxygen gas for deep-sea divers. Calculate the percent by volume of oxygen gas in the mixture if the diver has to submerge to a de?
11
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DO H2SO4 and Mg NO3 2 make a smell when they react?
11
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Is fading color a physical or chemical change?
11
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What color does ammonium chloride has when it is heated?
11
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Does alluminium and copper mix in water?
11
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What would happen if you heated a mixture of copper sulphuric acid and charcoal?
11
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Is spilling acid on your jeans a physical change or a chemical change?
11
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What evidence is there that copper 2 sulfate hydrate is converted to anhydrous copper 2 sulfate when heated?
11
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How long will it take for my son to be added to my food stamp case in nyc and will it go all the way back from when i added him?
11
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How to get rid of color transferred from my iron?
11
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Can i take hair dye containing hydrogen peroxide in the hold of a plane?
11
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Does it mean the infection is gone if the cut doesn t foam when you put hydrogen peroxide on it?
11
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What happens when solid sodium carbonate is heated in a test tube with hydrochloric acid. Alternatively does any reaction occur when hydrochloric acid?
11
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What kind of reaction when heating CuSO4 5H2O?
11
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What happens when add acid to potato?
11
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How to calculate the total mass water alka seltzer and glass?
11
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What happens when gaseous hydrogen sulfide is bubbled through nickel nitrste?
11
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What happens if i drink hydrogen monoxide?
11
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Why do my eyes burn and water?
11
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Is it safe to wash clothes at 95 degrees celsius?
11
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Is mixing sodium hydroxide and copper II nitrate a chemical change?
11
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Where did the heat absorbed by the reactants come from when ammoniun chloride and water are mixed?
11
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What is the chemical equation for a piece of aluminum foil dipped into copper chloride?
11
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Why does zinc and hydrochloric acid and fire make a popping noise?
11
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What happens when sulfuric acid reacts with copper oxide?
11
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How long will it take for kerosene to dissipate?
11
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Why when naoh is added to fescn it turns yellow?
11
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If cells are placed in a strong sugar solution water will _____?
11
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If a living snail was placed in a covered jar filled with bromthymol blue solution hypothesize what would happen to the color of the bromthymol blue?
11
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Why des the positve wire turn blue when in a solution of baking soda and water?
11
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What would you see when magnesium oxide reacts with hydrochloric acid?
11
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What gas is given off when magnesium metal is dropped into the acid and how you would identify it what test do i do what would result be?
10
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Will aluminum replace iron in iron nitrate?
10
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How do i clean Polyvinyl Chloride jackets?
10
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Does heating a hydrate result in a chemical change?
10
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Does brass turn black when rubbed with finger?
10
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What minerals in well water can turn hair blue and is there some way of filtering that mineral from my well water?
10
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| |
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What color would bleach change red cabbage juice?
10
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What happens when egg yolk is added with naoh and lead acetate?
10
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| |
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|
When exposed to the gases of a candle does cobalt chloride paper turn pink?
10
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| |
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|
What happens when a burning splint is placed in a test tube of oxygen gas?
10
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| |
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Is a crushed can a physical or chemical change?
10
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| |
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Why does well water turn when heated?
10
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| |
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Why do huskys turn brown?
10
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| |
|
|
What is the state of matter for potassium phosphate?
10
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| |
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When 7 295 g of copper II sulfate pentahydrate is heated to drive off the water of hydration how many grams of copper II sulfate and water are form?
10
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| |
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|
What is happening when hydrogen peroxide bubbles when poured on a wound?
10
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| |
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|
Broken leg physical or chemical change?
10
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What chemical reaction happen with rusting of an iron nail?
10
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| |
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How does phenol red change colors?
10
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| |
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What is the next step after rule to show cause?
10
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| |
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Is adding sugar to your tea a chemical or physical change?
10
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| |
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Why does flame pop when hydrogen gas?
10
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| |
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35.0 mL of 0.255 M nitric acid is added to 45.0 mL of 0.328 M Mg(NO3)2. Whatis the concentration of nitrate ion in the final solution?need help solv?
10
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| |
|
|
What happens if you mix ammonium carbonate with water?
9
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| |
|
|
What causes color in solution after reaction is completed in copper and silver nitrate lab?
9
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| |
|
|
WHAT HAPPENS TO THE COLOUR OF MANGANESE SULPHATE SOLUTION WHEN H2O2 IS ADDED TO IT?
9
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| |
|
|
Is tea lighting with lemon drops chemical change?
9
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| |
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|
When aluminum foil is added to a solution of CuCl2 red copper metal starts to form on the foil How many moles of Cu can be formed from 5 mol CuCl2 a?
9
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| |
|
|
Why does Copper II sulfate pentahydrate turn white when heated?
9
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| |
|
|
When ammonium carbonate decomposes would a glowing splint burner brighter?
9
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| |
|
|
What happens when ammonium hydroxide reacts with ferric sulphate?
9
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| |
|
|
How many moles of anhydrous salt of CuCO4 were maded?
9
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| |
|
|
My tap water is orange. My sisters kids were drinking the tap water this afternoon. Is there a danger from the tap water?
9
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| |
|
|
What chemical reaction makes your hair stiff and why?
9
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| |
|
|
How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O The reaction is?
9
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| |
|
|
Why does phenol red turn yellow when carbon dioxide is added?
9
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| |
|
|
What color will be produced by proline with ninhydrin? Why?
9
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| |
|
|
Is lemonade bubbling is a chemical change?
8
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| |
|
|
How long can you store pureed carrots before nitrate levels get too high?
8
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| |
|
|
Why is potassium not a good conductor?
8
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| |
|
|
Does SrCl2 conduct electricity?
8
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| |
|
|
Can i use hydrogen peroxide on my dog s vulva?
8
|
| |
|
|
Iron(iii) nitrate and Sodium Hydroxide?
8
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| |
|
|
How do you write the net ionic equation for potassium phosphate and calcium nitrate?
8
|
| |
|
|
What color is copper and silver nitrate in water?
8
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| |
|
|
What happens when hydrochloric acid is added to mossy zinc?
8
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| |
|
|
How would cucl2 react wiht aluminum?
8
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| |
|
|
Declared Chapter 13 in 10/2010. Currently behind 8 months on my mortgage. Several times unknown person stops and take pictures of my house?? Is this?
8
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| |
|
|
Which of the following is an example of a chemical change A Dissolving salt B Freezing water C Frying an egg D Bending metal?
8
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| |
|
|
Which statement best explains what happened to the glowing wooden stick as it was inserted to a testtube contaning oxygen gas?
8
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| |
|
|
What evidence of a chemical reaction might you see when an iron nail rusts?
7
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| |
|
|
Why does bubbling occur when add acid to H2CO3?
7
|
| |
|
|
Will silver get ruined in the shower?
7
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| |
|
|
CAN YOU STORE PEPPERS AT ROOM TEMPERATURE?
7
|
| |
|
|
Which acids react with calcium carbonate burning splint?
7
|
| |
|
|
If your skin turns yellow around a cut?
7
|
| |
|
|
How to change color H2SO4 from dark to clear?
7
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| |
|
|
When two aqueous solutions are mixed bubbles forms what change happens?
7
|
| |
|
|
Why do white shirts feel cooler?
7
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| |
|
|
WHAT IS THE RELATION OF THE DONNAN EFFECT TO OSMOTIC PRESSURE ON CAPILLARY AND ON PH?
7
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| |
|
|
Why is a flaming splint used in testing hydrogen?
7
|
| |
|
|
Is making cement a chemical or physical change?
7
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| |
|
|
Why does it make a pop when you put a lighted splint into h2?
7
|
| |
|
|
What happens if you place aluminum into HCL?
7
|
| |
|
|
Which is the balanced chemical equation showing hydrogen peroxide H2O2 decomposing into hydrogen H2 and oxygen O2?
7
|
| |
|
|
If the initial volume of the is 1 4 what total amount of in moles is formed in the first 50 of reaction?
7
|
| |
|
|
Is LED display glows in the dark a chemical or physical change?
7
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| |
|
|
When th precipitate remaining in 2 after filtration is treated with aqueous NH3 the precipitate completely dissolves what conclusions can be drawn?
7
|
| |
|
|
Why does the solution turn blue when hydrogen sulfide is added to copper oxide?
7
|
| |
|
|
Copper sulphate ( a blue solid) disappears when shaken with water.A blue solution is formed. os it chemical or pysical change? Why?
7
|
| |
|
|
Is putting food dye in water a physical or chemical change?
7
|
| |
|
|
What is the pressure if an additional 14 5 of nitrogen is added without changing the temperature?
6
|
| |
|
|
Why does oxygen cause a glowing splinter to ignite?
6
|
| |
|
|
For the reaction,2h2o2-> 2h2o o2,the order is?
6
|
| |
|
|
What are reasons that a flame test for metals is invalid?
6
|
| |
|
|
What happens when you treat a sample of tap water with some silver nitrate?
6
|
| |
|
|
What happens when aluminium is mixed to copper sulfate?
6
|
| |
|
|
What does crying do to blood pressure?
6
|
| |
|
|
What does it mean when a skin infection turns from green to yellow?
6
|
| |
|
|
Why does your skin turn yellow when concentrated nitric acid gets on it?
6
|
| |
|
|
Is heating CuSO4 x 5H20 an example of a chemical changes?
6
|
| |
|
|
How bad is it to leave water bottles in the car?
6
|
| |
|
|
What evidence of a chemical reaction occurs when burning a match?
6
|
| |
|
|
Does salicylic acid react with BaCl2?
6
|
| |
|
|
Does scylicic acid bleach your clothes?
6
|
| |
|
|
What precipitate forms when 3CuCL2 2Al yields 2AlCl3 3Cu?
6
|
| |
|
|
What happens when you heat Potassium permanganate?
6
|
| |
|
|
How is food pasta a physical change?
6
|
| |
|
|
What happens when food turns racid?
6
|
| |
|
|
If snow disappears without melting is that a physical or chemical change?
6
|
| |
|
|
Will mixing hydrogen peroxide and magnesium oxide?
6
|
| |
|
|
Why does chlorine bleach litmus paper?
6
|
| |
|
|
How does manganese catalyze hydrogen peroxide?
6
|
| |
|
|
Why does hydrogen make a popping sound when you place a burning splint on top of it?
6
|
| |
|
|
How long dors oil based paint emit toxic fumes?
6
|
| |
|
|
What is the last phase of braces?
5
|
| |
|
|
What type of chemical reaction is the rusting of an iron nail?
5
|
| |
|
|
Why is color change common in copper II sulfate pentahydrate is heated?
5
|
| |
|
|
What happens when water is added to cuprric sulfate?
5
|
| |
|
|
Is it a physical or chemical change when copper II sulfate is heated?
5
|
| |
|
|
What a the factors that can effect the pumpkin juice?
5
|
| |
|
|
How remove smell formaldehyde from clothes?
5
|
| |
|
|
What does women do to keep their underarm clear and clear?
5
|
| |
|
|
How reactant concentration affect the rates of reaction of iron nail and powdered iron with copper II nitrate?
5
|
| |
|
|
Does 210D polyester contain lead?
5
|
| |
|
|
Why does a precipitate form when two liquids are mixed?
5
|
| |
|
|
Does mass change when two solutions are mixed to form a solid?
5
|
| |
|
|
What is the purpose of adding hydrogen peroxide to the unioculated tube?
5
|
| |
|
|
How is H2O2 produce in our body?
5
|
| |
|
|
What solvents will remove the ink science fair project solution?
5
|
| |
|
|
If magnesium ribbon is placed in warm aluminium sulfate solution bubbles of a gas are formed What is the gas that is formed?
5
|
| |
|
|
What happens when you put a potato or liver into a beaker containing hydrogen peroxide?
5
|
| |
|
|
What physical properties do salt and sugar share?
5
|
| |
|
|
When strongly heated magnesium sulfide formed a yellow crystalline deposit on the walls of a sealed reaction vessel Metallic deposits were found on?
5
|
| |
|
|
What is a blue solution that changes colors with co2 added?
5
|
| |
|
|
What is the process that is occuring to make the red phenthol solution change colors?
5
|
| |
|
|
Does zinc react in copper sulfate?
5
|
| |
|
|
Is phosphorus a goodconductor of heat?
5
|
| |
|
|
What happends when you add copper carbonate to salicylic acid?
4
|
| |
|
|
Does boiling water chemically change tea?
4
|
| |
|
|
Is lemonade chemical or physical changes?
4
|
| |
|
|
What is the net ionic equation for the reaction of Potassium sulfide and iron nitrate?
4
|
| |
|
|
What does it mean if your eyes burn and starts to water?
4
|
| |
|
|
What happend when you drop a very small potassium permanganate crystal into water?
4
|
| |
|
|
Why is sand used as control in enzyme experiment?
4
|
| |
|
|
What gas causes a burning splint to go on fire?
4
|
| |
|
|
Why is sodium a good conductor?
4
|
| |
|
|
How many years will be needed for 26 g of Cesium-137 to decay to 3.250 g of cesium-137?
4
|
| |
|
|
Where can i get my ass bleach?
4
|
| |
|
|
Can popcorn cause a bellyache?
4
|
| |
|
|
Where can i get my ass bleach?
4
|
| |
|
|
If you carry out the reaction between table salt and copper II sulfate in of water the salt?
4
|
| |
|
|
Is mixing sodium hydroxide with copper sulfate a chemical or physical change?
4
|
| |
|
|
Can hydrochloric acid damage your clothes?
4
|
| |
|
|
If 50 0 grams hydrogen peroxide produce 15 0 g oxygen what is the percent yield for this reaction?
4
|
| |
|
|
Is bleaching a chemical or physical reaction?
4
|
| |
|
|
When aqueous solutions of zinc nitrate and barium hydroxide are combined The net ionic equation for this reaction is?
4
|
| |
|
|
Which type of substance is soft has a low melting point and is a poor conductor of electricity?
4
|
| |
|
|
Why do condoms turn brown?
4
|
| |
|
|
Why does liquid comes out from your viginar?
4
|
| |
|
|
Does aluminium react with copper nitrate?
4
|
| |
|
|
Why does my period change colors?
4
|
| |
|
|
Why does it make a popping sound when flame hydrochloric acid?
4
|
| |
|
|
I spilt a drink on my iphone 4 and now the ear piece is not working help?
4
|
| |
|
|
How to test unsaturated fats with bromine or iodine?
4
|
| |
|
|
Why is there no reaction if a piece of aluminum metal is placed in aqueous KCl?
4
|
| |
|
|
Which of these chemical formulasCl2 KCl Ar or NO2represents both an element and a molecule?
4
|
| |
|
|
Why doesnt potassium pop with the flamming splint test?
4
|
| |
|
|
Why does the formation of gas or bubbles indicate s chamical change?
4
|
| |
|
|
What happens when not all of the copper metal had reacted with the nitric acid when the student started to add sodium hydroxide?
4
|
| |
|
|
Why is 2 liquids bubble when mixed a chemical change?
4
|
| |
|
|
An 18.0-g sample of magnesium is completely burned in the presence of air to form magnesium oxide. What is the mass of the magnesium oxide obtained?
4
|
| |
|
|
Is popcorn bad for acid reflux?
4
|
| |
|
|
What are the physical changes when aluminum is added to copper chloride?
4
|
| |
|
|
When water is heated bubbles form in the water is this evidence of a chemical reaction Why?
4
|
| |
|
|
What if bromine shows brown on test strip?
4
|
| |
|
|
Manganese dioxide and hydrogen peroxide are reacted together and oxygen and water are the products. Hydrogen peroxide has the chemical formual H2O2. M?
4
|
| |
|
|
How do you make acid react quicker with calcium carbonate?
4
|
| |
|
|
A crystalline solid has a high melting point and is a good conductor of electricity in the liquid state. This solid could be?
4
|
| |
|
|
What happens when you mix lead ii nitrate and zinc metal?
4
|
| |
|
|
Will HCL dammage aluminum?
4
|
| |
|
|
Why is methyl alcohol added to the solution of Cu NH3 2?
4
|
| |
|
|
Is dying fabric a physical or chemical change?
4
|
| |
|
|
Is rusting a nail a synthesis decomposition or replacement chemical change?
4
|
| |
|
|
Does chlorine turn water yellow?
4
|
| |
|
|
Is 2h2o2 2h2o at equilibrium?
4
|
| |
|
|
If the initial volume of the is 1 7 what total amount of in moles is formed in the first 50 of reaction?
4
|
| |
|
|
When you breathe into a solution how does the reaction explain why the solution turned acidic?
4
|
| |
|
|
Is phosphorus a poor conductor?
4
|
| |
|
|
What happens in the potassium permanganate diffusion experiment?
4
|
| |
|
|
What happens to the solubility of BaCO3 as HNO3 is added?
4
|
| |
|
|
What is the cra tax rate for 92 000 pay?
4
|
| |
|
|
Does iodine mixed with cyclohexane conduct electricity why?
4
|
| |
|
|
How to remove yellow stains from cushion flooring?
4
|
| |
|
|
When a precipitation becomes dark in color what does that mean?
4
|
| |
|
|
What evidence of chemic reation might you see in burning a match?
4
|
| |
|
|
How do you read 2cu o2 2cuo?
4
|
| |
|
|
How to find zncu2o4 nanoparticle preparation?
4
|
| |
|
|
Why the breath cause the change of the color when we bubbling the bromthymol?
4
|
| |
|
|
What kind of reaction is it if two solids are formed?
3
|
| |
|
|
Why does nitric acid make your skin turn yellow?
3
|
| |
|
|
Can flames be used on mixtures of elements?
3
|
| |
|
|
Why does the solubility increase when NH3 is added to the solution?
3
|
| |
|
|
What does it mean when chemicals fizz?
3
|
| |
|
|
How to calculate hydrates CuSO4 xh2o?
3
|
| |
|
|
How much cesium 137 is safe?
3
|
| |
|
|
What does it mean when your skin turns yellow and your eyes?
3
|
| |
|
|
Which type of substance can conduct electricity in the liquid phase but not in the solid phase?
3
|
| |
|
|
What if someone drinks bromothymol blue?
3
|
| |
|
|
Why is potassium better conductor than sodium?
3
|
| |
|
|
Does bleach destroy grout?
3
|
| |
|
|
Why does my water turn black then clear?
3
|
| |
|
|
If 63 5 g of copper Cu combine with 16 g of oxygen O to form the compound CuO how many grams of oxygen will be needed to combine with the same am?
3
|
| |
|
|
What happens when metal reacts with foil?
3
|
| |
|
|
Why is dissolving sugar in a cup of coffee a chemical change?
3
|
| |
|
|
What happens when you ignite hydrogen gas with a match?
3
|
| |
|
|
What will happen when hydrogen perioxide reacts with IRON?
3
|
| |
|
|
What happens when AgNO3 is placed on Al foil?
3
|
| |
|
|
How many grams of H2 would be formed if 34 grams of carbon reacted with an unlimited amount of H2O? The reaction is:?
3
|
| |
|
|
What happens to percent water if salt thermally decomposes?
3
|
| |
|
|
What happens if a lighted splint is placed in a jar of carbon dioxide?
3
|
| |
|
|
Does a chemical change take place when you heat CuSO4 5H2O?
3
|
| |
|
|
What will happen when acidcombine metal becomes?
3
|
| |
|
|
Why would bubble appear if an acid was poured on chalk?
3
|
| |
|
|
Is butter getting rancid a physical change?
3
|
| |
|
|
What to expect for the jsap test for the irs?
3
|
| |
|
|
Why does baking soda cause water to turn blue?
3
|
| |
|
|
What gas is produced when you mix liver and hydrogen peroxide?
3
|
| |
|
|
What substance Is hard has a high boiling point and is brittle?
3
|
| |
|
|
Does liver contain manganese dioxide?
3
|
| |
|
|
What is the density of carbon dioxide gas at 25 2 C and 98 0 kPa 1 atm 101 325 Pa?
3
|
| |
|
|
What colours does 9ct Acid Test on metals mean?
3
|
| |
|
|
How do you know when oxygen is present in Hydrogen Peroxide and Manganese Dioxide test?
3
|
| |
|
|
Is heating copper2 sulfate a physical or chemical reaction?
3
|
| |
|
|
Does stepping on a soft drink make shoes grippier?
3
|
| |
|
|
Does anything other than water turn cobalt chloride paper pink?
3
|
| |
|
|
Can i use preparation h on 5 yr old?
3
|
| |
|
|
How fast alka seltzer makes gas real world appilcation?
3
|
| |
|
|
What happens when you add hcl to cuso4?
3
|
| |
|
|
How to remove copper sulfate smell from cloth?
3
|
| |
|
|
When Ag ions are added to the red FeSCN?
3
|
| |
|
|
Would flame tests identify two or three elements in a mixture why or why not?
3
|
| |
|
|
What happens when potassium meets water?
3
|
| |
|
|
How to calculate heat energy required to melt solid lead to liquid?
3
|
| |
|
|
Is it a chemical or physical change when LED glows in the dark?
2
|
| |
|
|
Is corn bad when it turns black after boiling it?
2
|
| |
|
|
Why is the reaction mixture extracted with sodium bicarbonate equation?
2
|
| |
|
|
What makes a conductor good or poor?
2
|
| |
|
|
Why must litmus paper be moistened before testing the sodium chloride with dulfur?
2
|
| |
|
|
What color is NaCl solution with bromthymol blue?
2
|
| |
|
|
Why does water turn red when clorex is added to it?
2
|
| |
|
|
When something boils over a yellow flame is produced from where?
2
|
| |
|
|
What happens to an enzyme if it is heated above 40 degrees celcius?
2
|
| |
|
|
Why is there a there a temperature change in a copper chloride almuninm reaction?
2
|
| |
|
|
Does aluminum react with onions?
2
|
| |
|
|
What would happen if you added iron metal to agno3?
2
|
| |
|
|
What happens after aluminum reacts with oxygen?
2
|
| |
|
|
What happens when we heat CuSO4 5H2O?
2
|
| |
|
|
Why doesnt sand react with hydrogen peroxide?
2
|
| |
|
|
If the first set of reactants is mgso4 and nh4oh and the second set of reactants is nh4oh and kal so4 2 is either reaction considered a synthesis rea?
2
|
| |
|
|
Can i use clorox to bleach my colored clothes?
2
|
| |
|
|
Does anything other than water turn cobalt chloride paper pink?
2
|
| |
|
|
Is bleaching hair a chemical or physical change?
2
|
| |
|
|
What substance contains carbon dioxide?
2
|
| |
|
|
What happens when you mix copper ll chloride solution plus aluminum foil?
2
|
| |
|
|
What color does tea turn blue litmus paper?
2
|
| |
|
|
Is snow disappearing without melting a physical or chemical change?
2
|
| |
|
|
What makes a substance a good or poor conductor of heat?
2
|
| |
|
|
Is grilling a hamburger a physical or chemical change?
1
|
| |
|
|
Is sodium iodide a stron electrolyte?
1
|
| |
|
|
How can a chemical change be reversed?
1
|
| |
|
|
Is polyurithane toxic to humans?
1
|
| |
|
|
When a chemical drain opener is added to a clogged sink bubbles form and the water in the sink gets warmer is it a chemical reaction?
1
|
| |
|
|
Why does the water turn stain my tub blue?
1
|
| |
|
|
Why does salt HAVE A HIGH MELTING POIINT and conducts elecrity when melted or dissolved in water?
1
|
| |
|
|
Is NaCl a high conductor of electricity?
1
|
| |
|
|
What will happen if you have vinegar and hydrogen peroxide together and stick a rusty nail in the solution?
1
|
| |
|
|
What reacts with aqueous copper II sulphate to give a pink solid?
1
|
| |
|
|
What do the bubbles in an HCL reaction indicate?
1
|
| |
|
|
How does arabic clothing keep people cool in desert heat?
1
|
| |
|
|
What would happen if you breathed in to phenol red solution?
1
|
| |
|
|
What happens if we blow into the phenol red solution?
1
|
| |
|
|
How does magnesium oxide become contaminated with magnesium carbonate?
1
|
| |
|
|
What happened when you added the drops of water to the anhydrous copper II sulfate?
1
|
| |
|
|
How to keep iron ons from cracking?
1
|
| |
|
|
What happens when you add a flame to a test tube of gas created by mixing hydrochloric acid and magnesium?
1
|
| |
|
|
Does boiling an egg change its mass?
1
|
| |
|
|
Why doesn t solid copper chloride conduct electricity?
1
|
| |
|
|
What is the reaction between H2S and NaOH?
1
|
| |
|
|
What happens when chlorine reading test shows orange color?
1
|
| |
|
|
Is volatility of acetone physical or chemical change?
1
|
| |
|
|
Does bleach react with copper pipe?
1
|
| |
|
|
What pool chemical turns clothes and skin yellow?
1
|
| |
|
|
If the pH of an acid rainstorm is approximately 3 0 how many times greater is the H in the rain than in a cup of coffee with a pH 5 0?
1
|
| |
|
|
What does it mean when you wipe a penny across your hand and it turns black?
1
|
| |
|
|
How too calculate the structural formula with dot h2o?
1
|
| |
|
|
What happens when you mix lead nitrate solution and zinc metal?
1
|
| |
|
|
How long does it take to get rid of nitric acid skin stains?
1
|
| |
|
|
When the sidewalk is warmed by the heat of the suna chemical reaction?
1
|
| |
|
|
What happens when you heat sulfur and copper?
1
|
| |
|
|
Why would you test manganese dioxide and h2o2?
1
|
| |
|
|
How to calculate the total work in process during the year?
1
|
| |
|
|
Does copper sulfate stain clothes?
1
|
| |
|
|
Using copper (II) sulfate and burning it with methanol, a green fire is made. what is the chemical equation and what is produced?
1
|
| |
|
|
How do you know manganese dioxide doesn t react with hydrogen peroxide?
1
|
| |
|
|
Which of the following is evidence for reaction when two solutions are mixed?
1
|
| |
|
|
How to create a tube of hydrogen?
1
|
| |
|
|
What is the anhydrous salt of CuSO4 5H2O?
1
|
| |
|
|
Is melting butter a chemical change?
1
|
| |
|
|
Why does the temperature increase when Copper II chloride is added to water?
1
|
| |
|
|
Baking soda water calcium chloride bromothymol blue?
1
|
| |
|
|
What happens when hydrogen peroxide and manganese dioxide are put in a test tube and a glowing splint is inserted?
1
|
| |
|
|
Can h2s gas react with alkali?
1
|
| |
|
|
Is it safe to put a mixture of vinegar and baking soda in the fabric softener dispenser of a washing amchine?
1
|
| |
|
|
How could you use the lighted splint test to tell the difference between test tubes of hydrogen oxygen and carbon dioxide?
1
|
| |
|
|
What are the products in the following equation 2H2O 2H2O O2?
1
|
| |
|
|
Is mixing copper (II) sulfate, distilled water and steel wool a chemical or physical change?
1
|
| |
|
|
Why does copper change color when heated?
1
|
| |
|
|
What is the net ionic equation of sodium hydroxide and ammonium chloride?
1
|
| |
|
|
What happen when burning splinter placed near the mouth of the test tube?
1
|
| |
|
|
Do soda crystals make clother white?
1
|
| |
|
|
Can you mix bleach with copper sulfate?
1
|
| |
|
|
If 23.4 grams of hydrogen gas were produced by the reaction below, how many grams of aluminum chloride were produced?
2 Al + 6 HCl ->2 AlCl3 + 3 H2?
1
|
| |
|
|
Which compounds are weaker conductors compared to nacl?
1
|
| |
|
|
What happens when a burning splint is in a test tube with carbon dioxide?
1
|
| |
|
|
When i sweat my black tee shirt gets salt spots?
1
|
| |
|
|
Wavelength in meters of electromagnetic energy?
1
|
| |
|
|
How to test for unsaturated fat?
1
|
| |
|
|
Can contacts cause yellow bubbles to form on eyes?
0
|
| |
|
|
What happen when u add manganese dioxide, silicon dioxide and catalase seperatly to hydrogen peroxide?
0
|
| |
|
|
What type of chemical reaction is dropping alka?
0
|
| |
|
|
What does CuSO4 5H2O release when heated?
0
|
| |
|
|
Why does the solution turn blue when you mix copper and silver nitrate?
0
|
| |
|
|
Why did the flame of the burning match or splint go out in a sodium carbonate + HCl reacting?
0
|
| |
|
|
What is the reaction when you add a Zinc strip to Pb NO3 2?
0
|
| |
|
|
Is bubble into a solution what volume?
0
|
| |
|
|
What prevents the onions not to burst and swell up when placed in distilled water answer?
0
|
| |
|
|
Why does ammonia form bubbles when reacts with a base ?
0
|
| |
|
|
When you apply hydrogen peroxide to a cut is a chemical reaction occuring?
0
|
| |
|
|
What color does bromthymol blue turn when you breathe into it?
0
|
| |
|
|
What happens if we use sulfuric acid instead of hcl?
0
|
| |
|
|
If you combine CuCl2 with aluminum?
0
|
| |
|
|
Why does cum turn into a liquid?
0
|
| |
|
|
What happens when ammonium chloride reacts with sodium chloride?
0
|
| |
|
|
What happens when you add nickel carbonate to sulphuric acid?
0
|
| |
|
|
When copper 2 chloride mixed with water is there a chemical reaction?
0
|
| |
|
|
Does bleach eat through plastic bags?
0
|
| |
|
|
Is removing water from a hyrated ionic compound a hysical or chemical change?
0
|
| |
|
|
Is this a chemical reaction or a physical reaction or both?
0
|
| |
|
|
What change do you observe when magnesium ribbon is burned in air in answer?
0
|
| |
|
|
Why did my contact lense solution turn purple?
0
|
| |
|
|
What happens to the burning splint in the presence of carbon dioxide?
0
|
| |
|
|
What is the chemical reaction between sand and hydrogen peroxide?
0
|
| |
|
|
Is phosphorus a good conductor of electricity or heat?
0
|
| |
|
|
What colour does copper II sulfate pentahydrate turn into after heating?
0
|
| |
|
|
Why did my contact lense solution turn purple?
0
|
| |
|
|
How can you differentiate between table salt and sugar?
0
|
| |
|
|
Why does blue copper II sulphate turn white after it is heated?
0
|
| |
|
|
What gas is produced when copper and aluminum foil react?
0
|
| |
|
|
What color can steel wool be?
0
|
| |
|
|
Why is my silver spoon turning bluish?
0
|
| |
|
|
What s happening when 2 substances are combined and bubbles forming from the mixture?
0
|
| |
|
|
What are the fabric used in making winter jacket?
0
|
| |
|
|
What happens when a lighted splint is placed over a testtube?
0
|
| |
|
|
How to remove antiglare coatings eyeglasses?
0
|
| |
|
|
Why does dehydrating CuSo4 5h2o change the color?
0
|
| |
|
|
Is it a chemical or physical change when you heat copper sulfate pentahydrate?
0
|
| |
|
|
Is sodium chloride a conductor or insulator?
0
|
| |
|
|
What happens when you add mercury to aluminum?
0
|
| |
|
|
How to write a single replacement reaction for Mg and Al NO3 3?
0
|
| |
|
|
Why do wounds bubble when hydrogen peroxide is applied?
0
|
| |
|
|
What happens to phenol when it contacts carbon dioxide?
0
|
| |
|
|
Why are my fingertips after i touched hydrogen peroxide?
0
|
| |
|
|
What gas is given off in the reaction between copper sulfate and zinc?
0
|
| |
|
|
Does pressure cooker bursts?
0
|
| |
|
|
What happens to cells in high sugar environment?
0
|
| |
|
|
What happens to the manganese in the oxygen generation experiment?
0
|
| |
|
|
Does calcium carbonate conducts electricity?
0
|
| |
|
|
Is bleaching clothes a physical or chemical?
0
|
| |
|
|
Which is heavier methyl orange or potassuim permanganate?
0
|
| |
|
|
What will happen if mix hydrogen peroxide with hair dye?
0
|
| |
|
|
What happened when the glowing splint was placed near the gas produced by MnO2 2H2O2 why must the test tube be stopped during the experiment?
0
|
| |
|
|
What if phenol red turns darker?
0
|
| |
|
|
Who was the first to test what colors absorb heat?
0
|
| |
|
|
What occurs when aluminum is added to copper chloride?
0
|
| |
|
|
How to burn 3d mkv?
0
|
| |
|
|
When calculating the daily protein needs for marathon runners or competitive weightlifters you should allow for approxmately how many grams of protei?
0
|
| |
|
|
Can strontium be soft in the solid phase?
0
|
| |
|
|
If water turns blue when adding copper is that a physical or chemical change?
0
|
| |
|
|
When sodium carbonate is mixed with lime water?
0
|
| |
|
|
What is the theoretical yield (in moles) of MgO that can be formed if you react 3.2 mol of O2 with an excess of magnesium?
2Mg(s) O2(g) %u2192 2MgO?
0
|
| |
|
|
Why is h2so4 cuo blue?
0
|
| |
|
|
How to get rid of agno3?
0
|
| |
|
|
What does Potassium permanganate and methyl orange do as you increase the temperature of incubation?
0
|
| |
|
|
What colour would zinc metal become when mixed with copper sulphate?
0
|
| |
|
|
If two aqueous salts are mixed is it a chemical change?
0
|
| |
|
|
Does pa state law require a workplace to have heat?
0
|
| |
|
|
What would happen if a nickel was placed in zinc chloride?
0
|
| |
|
|
Explain the source of the blue color of the solution after the reaction?
0
|
| |
|
|
What causes copper solutions to turn blue?
0
|
| |
|
|
What is the effect of mixing carbonated water with baking soda?
0
|
| |
|
|
What would happen if copper and lithium salts were mixed?
0
|
| |
|
|
Why does sodium bicarbonate produce gas bubbles?
0
|
| |
|
|
How to get bleeding of other colors out of lighter colors?
0
|
| |
|
|
What s the function of H2O2 in the synthesis of CuSO4 5H2O?
0
|
| |
|
|
What happens when you add aluminum foil to copper II sulfate?
0
|
| |
|
|
Is soy sauce a solution or colloid or a suspension?
0
|
| |
|
|
Why is there a change in color after zinc reacts with coppersulfate?
0
|
| |
|
|
Which substance will require the greatest amount of heat water or copper?
0
|
| |
|
|
List of equipment needed for ph changes with acids and bases?
0
|
| |
|
|
IS NA2SO4 A GOOD CONDUCTOR OF ELECTRICITY?
0
|
| |
|
|
What reaction will occur when you heat the hydrate of copper 2 sulfate?
0
|
| |
|
|
How to know if a substance has a lower boiling point?
0
|
| |
|
|
What happens when a scar turns blue?
0
|
| |
|
|
Why is calcium a good conductor?
0
|
| |
|
|
Is heat produced or absorbed when zinc is added to HCl and a flame is brought to the mouth of the test tube?
0
|
| |
|
|
Is mixing together two paints a chemical or physical reaction?
0
|
| |
|
|
What is created when hydrogen peroxide is decomposed?
0
|
| |
|
|
What pH level does manganese dioxide work best in?
0
|
| |
|
|
How could you test for hydrogen and oxygen gases when you place liver and potato in hydrogen peroxide?
0
|
| |
|
|
Is it better to store corn on the cob at room temperature?
0
|
| |
|
|
Why isn t food coloring added to water a chemical change but leaf changes is a chemical change?
0
|
| |
|
|
Why do my eyes burn and water when i m looking at the computer screen?
0
|
| |
|
|
Which compound in the solid state has a high melting point and conducts electricty when it is liqu?
0
|
| |
|
|
How formula s in shampoo work?
0
|
| |
|
|
Are silver nitrate and nitrazine the same thing?
0
|
| |
|
|
Why is copper chloride solution blue zinc?
0
|
| |
|
|
What gas is formed when mixing hydrogen peroxide and manganese dioxide?
0
|
| |
|
|
What is the chemical name of Na4C?
0
|
| |
|
|
What if zinc was left when copper was dry?
0
|
| |
|
|
How can copper sulfate and water be changed back?
0
|
| |
|
|
Which of the following contains the largest number of molecules 1 15 0 g H2O?
0
|
| |
|
|
Does unearned revenue increase current ratio?
0
|
| |
|
|
What element has 27 protons and 25 electrons?
0
|
| |
|
|
When CUSO4 changes from blue to white is it a psysical exchange?
0
|
| |
|
|
Why does potassium permanganate diffuse faster?
0
|
| |
|
|
Is the sidewalk warmed by the sun a chemical changes and physical changes?
0
|
| |
|
|
Will Chlorine in CaCl2 compound alter color when exposed to a flame?
0
|
| |
|
|
How to get rid of salt lines on?
0
|
| |
|
|
What is the percentage yield for a reaction in which 27 0 grams of copper is produced by reacting 32 5 grams of zinc with excess copper II sulfate s?
0
|
| |
|
|
Why iodine vaporises when heated gently?
0
|
| |
|
|
Why does effervescence occur when using H2O2?
0
|
| |
|
|
Is chemistry majors sometimes get holes in cotton jeans they wear to lab because of acid spills chemical or physical?
0
|
| |
|
|
Is melting butter in the sun chemaical change or physical change?
0
|
| |
|
|
Why does copper chloride solution conduct electricity?
0
|
| |
|
|
Does wearing light clothing make you warmer or colder than wearing dark clothing?
0
|
| |
|
|
When bleach changes the color of a fabric is it a physical or chemical change?
0
|
| |
|
|
Why does the crucible need to be heated in chemistry?
0
|
| |
|
|
Why nickel carbonate added in excess in preparation of nickel sulphate?
0
|
| |
|
|
Is peroxide hair dye permitted on an aeroplane?
0
|
| |
|
|
Why vinegar forms bubbles and is poured onto the calcium deposits on a faucet and some of the calcium dissolves a chemical reation occures?
0
|
| |
|
|
How to test the gas released when mixing manganese oxide and hydrogen oxide?
0
|
| |
|
|
How to set dye in jeans salt?
0
|
| |
|
|
What kind of reaction is 2h2o2 mno2?
0
|
| |
|
|
What happens when a copper solution is mixed with a nail?
0
|
| |
|
|
What colour does copper II chloride dihydrate turn into after heating?
0
|
| |
|
|
What could a paper soaked in CoCl2 and dried be used as a test for?
0
|
| |
|
|
ARE BUBBLES FORMED BY HEATED WATER REACTIONS?
0
|
| |
|
|
How fast does water flow from a hole at the bottom of a very wide 6 0 deep storage tank filled with water?
0
|
| |
|
|
Why does copper displace silver from silver nitrate?
0
|
| |
|
|
If a burning splint is placed in hydrogen will the flame pop then go out?
0
|
| |
|
|
Is bubble formation on chalk added to acid evidence of a chemical reaction?
0
|
| |
|
|
Will clorox bleach eat through plastic?
0
|
| |
|
|
Is Almunuim metal react with aqueous solution of silver nitrate?
0
|
| |
|
|
Write a word equation for the reaction (remember the hydrogen peroxide isbreaking downand the manganese dioxide is only a catalyst but does not lake p?
0
|
| |
|
|
Does steel wool react with copper chloride solution?
0
|
| |
|
|
Do you change baby bottles turning yellow?
0
|
| |
|
|
When butter melts in a pan is it a reaction change of matter?
0
|
| |
|
|
Is hydrogen present when the test tube is placed mouth up for 2 seconds?
0
|
| |
|
|
How do you write silver nitrate and potassium chromate yields silver chrome and potassium nitrate in word form and balance?
0
|
| |
|
|
What type of reaction is steel?
0
|
| |
|
|
What happens when you react hcl with copper oxide?
0
|
| |
|
|
How to locate a probabted will?
0
|
| |
|
|
Why does my mix of potassium hydroxide and water tuern rust brown and thick?
0
|
| |
|
|
Is mixing copper and silver nitrate and endothermic reaction?
0
|
| |
|
|
What observations would occur is manganese was added to HCL?
0
|
| |
|
Canada
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