What are the essentials of a chemical equation ?

A chemical equation should satisfy the following conditions:

What information does a balanced chemical equation convey ?

A chemical equation gives the following two types of information:

1. Qualitative Information:

A chemical equation provides the following qualitative information about the reaction. It tells us the ,

(i) Names of the reactants which take part in the reaction

(ii) Names of the products formed in the reaction.

2. Quantitative information:

A chemical equation gives the following quantitative information. It tells us about ,

(i) The numbers of molecules or atoms of reactants and products taking part in the reaction.

(ii) The number of moles of each substance involved in the reaction.

(iii) The mass of each substance involved in the reaction.

(iv) Mass-mass, mass-volume, volume-volume relationship between the reactants and products.