Write down the formulae of (i) Sodium oxide (ii) Aluminium chloride (iii) Sodium sulphide (iv) Magnesium hydroxide
The formulae. are (i) Formula bf Sodium Oxide Symbol → Na O Charge → +1 –2 Formula → Na2O (iii) Formula of Sodium Oxide Symbol → Na S Charge → + 1 –2 Formula → Na2S (ii) Formula of aluminium chloride Symbol → Al Cl Charge → +3 –1 Formula → A1C13 (iv) Formula of magnesium hydroxide Symbol → Mg OH Charge 1 Formula → Mg(OH)2
