Question

1) (a) Define a balanced chemical equation. Why should an equation be balanced?​

Answer 1

Answer:

A balanced chemical equation is the chemical equation in which total mass of reactants is equal to the total mass of products.

It is important to maintain the law of conservation of mass .

Answer 2

Answer:

A balanced chemical reaction is an equation that has equal numbers of each type of atom on both sides of the arrow.  

The law of conservation of mass states that atoms can neither be created nor destroyed in a chemical reaction, so the number of atoms that are present in the reactants has to balance the number of atoms that are present in the products.