Balancing a Chemical Reaction Equation by Decomposing the Reaction into "Sub-reactions"

Based on the merits of other balancing methods of chemical equation,a method by decomposing the reactant or product is proposed for balancing a complicated chemical equation.The results indicated that,comparing with other balancing method,the merit of this method lies in that it does not require one to know the valence of elements,the electron translation detail of the reaction,and the complicated mathematical manipulation.The method is a supplementary of the chemical equation balancing method,and it can also promote the understanding of a chemical reaction.