Write down the formulae of
(i) sodium oxide
(ii) aluminium chloride
(iii) sodium sulphide
(iv) magnesium hydroxide
Here are the chemical formulas for the compounds:
i) Sodium oxide: Na₂O
ii) Aluminum chloride: AlCl₃
iii) Sodium sulfide: Na₂S
iv) Magnesium hydroxide: Mg(OH)₂