Question

What is a chemical equation? Explain with the help of an example.

Answer 1

The method of representing a chemical reaction using the symbols and formulae of the substances involved is called a chemical equation.

Example: Zinc metal reacts with dilute sulphuric acid to form zinc sulphate and hydrogen gas. This equation is written as:

\[\ce{Zn_{(s)} + H2SO4_{(aq)} -> ZnSO4_{(aq)} + H2_{(g)}}\]