Question

Give two examples for each of the following:

Chemical formula

Answer 1

Chemical formula:

• A set of chemical symbols showing the elements present in a compound and their relative properties is called a chemical formula.
• The chemical formula of a compound is a symbolic representation of its composition.
• Chemical formulas provide insight into the elements that constitute the molecules of a compound and also the ratio in which the atoms of these elements combine to form such molecules.
• For example, the chemical formula for water is$\left({\mathrm{H}}_2\mathrm{O}\right)$, aluminum oxide is ${\mathrm{Al}}_2{\mathrm{O}}_3$ and carbon dioxide is ${\mathrm{CO}}_2$.