Question

Q.1: What is a balanced chemical equation ? Why should the chemical equation be
balanced ?​

Answer 1

Answer:

A chemical equation is the symbolic representation of a chemical reaction in the form of symbols and formulae, wherein the reactant entities are given on the left-hand side and the product entities on the right-hand side.

Explanation:

The chemical equation needs to be balanced so that it follows the law of conservation of mass.

Answer 2

• A chemical change is represented by a chemical equation.

• When the number of atoms of different elements on reactant and product side are equal then the chemical equation is called a balanced chemical equation.

• It is important to balance a chemical equation because :

1. To validate the law of conservation of mass which states that the mass of reactants should be equal to the mass of products. The total mass of a system is conserved. This law holds true only if number of atoms of reactants reacting together is equal to the number of product atoms formed.
2. A balanced chemical equation tells us about the physical state of the reactants and products whether they are solid liquid or gas or aqueous.
3. It tells us about heat changes that take place in a chemical reaction