Question

Name the following compounds. Also write he symbols/formulae of the ions present in them :
(a) CuSO₄
(b) (NH₄)₂SO₄
(c) Na₂O
(d) Na₂CO₃
(e) CaCl₂

Answer 1

(a) Copper sulphate (Copper ion – Cu²⁺ and Sulphate ion – SO₄²⁻)
(b) Ammonium sulphate (Ammonium ion −NH₄⁺ and Sulphate ion −SO₄²⁻)
(c) Sodium oxide (Sodium ion −Na⁺ and Oxygen ion −O²⁻)
(d) Sodium carbonate (Sodium ion −Na⁺ and Carbonate ion −CO₃²⁻)
(e) Calcium chloride (Calcium ion −Ca²⁺ and Chloride ion −Cl⁻)