Question

what are chemical raction and its characteristic​

Answer 1

Answer:

a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.

The characteristics of a chemical reaction are : Evolution of gas. Formation of a precipitate. Change in color. Change in temperature.

Answer 2

Answer:

A chemical reaction is in which the bonds are broken within reactant molecules, and new bonds are formed within product molecules in order to form a new substance.

characters are colour change, formation of precipitate, odour change, formation of gas and temperature change