Question

Define chemical formula.

Answer 1

Chemical formula-

• The symbolic representation of the composition of a chemical compound is known as the chemical formula.
• It represents different elements present in a molecule of a compound and the number of atoms of the element bonded in the compound.
• For example, the chemical formula of water is H₂O. It contains the elements hydrogen (H) and oxygen (O). It also represents that it contains 2 atoms of hydrogen and one atom of oxygen.
• The chemical formula is written on the basis of the valency of elements involved in the molecule of the compound.