Question

State various characteristics of chemical reactions with example .

Answer 1

Characteristics of Chemical reaction

1)Evolution of gas. Some chemical reactionsare characterised by the evolution of gas. ...2)Formation of precipitate. Some chemical reactions are characterised by the formation of precipitate. ...3)Change in colour. Some chemical reactionsare characterised by change in colour. ...4)Change in temperature. ...5)Change of state.

Answer 2

Hi, here is your answer
Characteristics of chemical Reaction are as follows :
1)change in colour of product formed such as the chemical activity of ethylene changes the colour of mango from green to yellowish.
2)Change in state of various products formed.
For instance:CaCO3+H2O reacts to form Ca(OH)2+ CO2