Explanation:
A chemical equation that represents equal number of atoms on both reactant and product side is known as a balanced chemical equation.
For example, when chlorine gas reacts with solid potassium then a synthesis reaction takes place which leads to the formation of solid potassium chloride.
The reaction equation will be as follows.
[tex]Cl_{2}(g) + K(s) \rightarrow KCl[/tex]
Number of atoms on reactant side are as follows.
Cl = 2
K = 1
Number of atoms of product side are as follows.
Cl = 1
K = 1
Hence, to balance this chemical equation, multiply K on reactant side by 2 and multiply KCl by 2 on product side.
Therefore, the balanced chemical reaction equation will be as follows.
[tex]Cl_{2}(g) + 2K(s) \rightarrow 2KCl[/tex]