Question

What do you understand by the term chemical formula?

Answer 1

Chemical formula:

• The formula of a substance is the symbolic representation of a chemical substance.
• To write the formula of a chemical substance, the valency and the symbol of the various atoms or radicals present in it must be known.
• For example, the chemical formula of sulphuric acid is ${\mathrm{H}}_2{\mathrm{SO}}_4$.