22
Question Question 22
Name three (i) sulphates (ii) chlorides insoluble in water and two (i) oxides (ii) carbonates soluble in water.
Insoluble in Water
(i) Three sulphates insoluble in water are:
- Lead sulphate (PbSO4)
- Calcium sulphate (CaSO4)
- Barium sulphate (BaSO4).
(ii) Three chloride insoluble in water are:
- Silver chloride (AgCl)
- Lead chloride (PbCl2)
- Mercury chloride (Hg2Cl2).
Soluble in Water
(i) Two oxides soluble in water are:
- Sodium oxide (Na2O)
- Potassium oxide (K2O)
(ii) Two carbonates soluble in water are:
- Sodium carbonate (Na2CO3)
- Ammonium carbonate [(Na4)2CO3]