Explanation:
An equation that consists of same number of atoms on both reactant and product side is known as a balanced chemical equation.
For example, [tex]C_{7}H_{6}O + O_{2} \rightarrow CO_{2} + H_{2}O[/tex]
Number of atoms on reactant side are as follows.
C = 7
H = 6
O = 3
Number of atoms on product side are as follows.
C = 1
H = 2
O = 3
Therefore, to balance this chemical equation we multiply [tex]O_{2}[/tex] by 8 on reactant side. Whereas we multiply [tex]CO_{2}[/tex] by 7 and [tex]H_{2}O[/tex] by 3 on product side.
Therefore, the balanced chemical equation will be as follows.
[tex]C_{7}H_{6}O + 8O_{2} \rightarrow 7CO_{2} + 3H_{2}O[/tex]
