What do you mean by balanced chemical equation

It is an equation where the reactants are equal to the products

Explanation:

A balanced chemical equation occurs when the number of the different atoms of elements in the reactants side is equal to that of the products side.

For example:

A+B=AB

on the left side (reactants) you see 1 A and 1B. on the right side, you see 1A and 1B. It is balanced if atoms on left are equal with atoms on the right.

Below.

Explanation:

A balanced chemical equation is an equation for a chemical reaction which the number of atoms for each element in the reaction and the total is the same for both sides.