what is the answer off
Attachments:
Answers
Answered by
1
(1) chemical reaction showing evolution of gas
water and carbon dioxide, sulfurous acid breaks down to water and sulfur dioxide, and ammonium hydroxide breaks down to water and ammonia gas.
(2) change in colour of a substance during chemical reaction
Reaction of iron and copper sulphate
CuSO4+Fe=FeSO4+Cu
Color changes from blue to light green.
OR
Copper reacts with oxygen, H2O and CO2 to give copper carbonate, which changes color from brown to blue or blue green.
Rusting, blackening of surfaces of cut vegetables and fruits are other examples of change of color in a chemical reaction.
this is your answer...
water and carbon dioxide, sulfurous acid breaks down to water and sulfur dioxide, and ammonium hydroxide breaks down to water and ammonia gas.
(2) change in colour of a substance during chemical reaction
Reaction of iron and copper sulphate
CuSO4+Fe=FeSO4+Cu
Color changes from blue to light green.
OR
Copper reacts with oxygen, H2O and CO2 to give copper carbonate, which changes color from brown to blue or blue green.
Rusting, blackening of surfaces of cut vegetables and fruits are other examples of change of color in a chemical reaction.
this is your answer...
Similar questions