Question

What is chemical reaction ? What are the characteristics of chemical reaction?​

Answer 1

Explanation:

Chemical reaction, a process in which one or more substances, the reactants, are converted to one or more different substances, the products. Substances are either chemical elements or compounds. A chemical reaction rearranges the constituent atoms of the reactants to create different substances as products.

Answer 2

Defination

A chemical reaction is a chemical change where substances react with each other to form a new substance.

Characteristics of chemical reaction

$\bf \: \: Change \: in \: state \\ \bf \: Change \: in \: color \\ \bf \: Evolution \: of \: gas \\ \bf \: Change \: in \: temperature \\ \bf \: Formation \: of \: precipitate$