Question

why should we balance a chemical equation ? explain with an example​

Answer 1

Answer:

We must assure that number of atoms on both sides are equal

Explanation:

example: C+O2 -. CO2

Answer 2

According to law of conservation of mass, when a chemical reaction occurs, the mass of the products should be equal to mass of the reactants. Therefore, the amount of the atoms in each element does not change in the chemical reaction. As a result chemical equation needs to be balanced.