It is important to balance a chemical equation in order to obey the law of conservation of mass.
The law of conservation of mass opines that mass/matter/atom can neither be created nor destroyed in the course of any reaction but can be converted from one form to another. In order words, the number of atoms of each element in a reaction before and after must balance.
Thus, a chemical reaction that obeys the law of conservation of mass/matter or atom must have an equal number of participating atoms before and after the reaction.
More on the law of conservation of mass can be found here: https://brainly.com/question/13383562
