Chapter U4.72, Problem 1E

Interpretation Introduction

Interpretation:

The use of balancing chemical equations needs to be explained.

Concept introduction:

According to law of conservation of mass, it cannot created nor destroyed in a chemical reaction.

Answer to Problem 1E

Chemical equation need to be balanced to validate Law of conservation of mass.

Explanation of Solution

In a balanced chemical equation there is equal number of atoms of same element on both sides of the reaction arrow. A balanced chemical equation provides lots of informations like the molar ratio in which the reactants have reacted and in what molar ratio products are generated. Total mass of the reactants must be equal to the total mass of products as per Law of conservation of mass. This can only be shown if the equation is balanced.