Question

Is water an element or a compound?

Answer 1

• The chemical formula of water is ${\mathrm{H}}_2\mathrm{O}$.
• Water is made up of two hydrogens and one oxygen.
• The chemical substances that are made up of two or more elements chemically bound together in a fixed ratio are called compounds.
• Water is a chemical compound as it has a definite composition by mass, i.e. a ratio of ${\mathrm{H}}_2:\mathrm{O}=2:16=1:8$ by mass is 1:8.