Question

Why is it necessary to balance a chemical equation?​

Answer 1

Answer:

A chemical equation is a symbolic representation of a chemical reaction. Here we use symbols and formulas of the substance involved in the reaction.

According to law of conservation of mass, "matter can neither be created nor be destroyed in a chemical reaction.This is possible only, if total number of atoms on the reactants side is equals to total number of atoms on products side. Thus, a chemical reaction should be always balanced

Answer 2

Answer:

a chemical equation should always be balanced because the law of conservation of mass states that matter can neither be created Nor destroyed so in a chemical equation total mass of reactants must be equal to the mass of products formed .