Question

2 mark question

What is a balanced chemical equation? Why should a chemical equation be balanced?

Answer 1

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HERE IS YOUR ANSWER

BALANCED CHEMICAL EQUATION :
The equation which has equal number of different atoms in the reactants and products is called balanced chemical equation.

A chemical equation should be balanced to satisfy the "Law of conservation of mass".

HOPE THIS HELPS YOU.

Answer 2

A balanced chemical equation is a chemical equation in which the number of atoms in the reactant and product is same.
A chemical reaction should be balanced because an atom can not be created nor be destroyed in a chemical reaction so to show that there is nothing wrong in a reaction so it's compulsory to balance it.

Ex:

H2 + O2 ---› H2O (Unbalanced)

2H2 + O2 ---› 2H2O (balanced)