What is a balanced chemical equation? Why should chemical equations be balanced?

(N/A) balanced chemical equation is one in which the number of atoms of each element is equal on both the reactant and product sides.
Chemical equations must be balanced to satisfy the $Law$ of $Conservation$ of $Mass$. This law states that mass can neither be created nor destroyed in a chemical reaction. Therefore,the total mass of the elements present in the reactants must be equal to the total mass of the elements present in the products. To ensure this,the number of atoms of each element must be the same on both sides of the equation.