Question

what is
chemical reaction & what
characteristics of chemical reaction ?
are the
Q​

Answer 1

Answer:

The substance (or substances) initially involved in a chemical reaction are called reactants or reagents. Chemical reactions are usually characterized by a chemical change, and they yield one or more products, which usually have properties different from the reactants.

Answer 2

CHEMICAL REACTION:-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.

CHARACTERISTICS:-

1. Evolution of a gas.

2. Formation of a precipitate.

3. Change in colour.

4. Change in temperature.