Write the chemical formulae of the following: (a) Magnesium chloride (b) Calcium oxide

Chemical formulae of the following: (a) Magnesium chloride (b) Calcium oxide (c) Copper nitrate (d) Aluminium chloride (e) Calcium carbonate

Answer: A compound’s chemical formula is a symbolic representation of its chemical composition. Chemical equations reveal the elements that make up a compound’s molecules, as well as the proportions in which these elements’ atoms mix to produce those molecules.

Magnesium chloride MgCl₂

Calcium oxide (CaO)

Copper nitrate Cu(NO₃₎₂

Aluminium chloride AlCl₃

Calcium carbonate CaCO₃