Answer
The ionic reactions:
(a) 2Ag⁺(aq)+NO₃⁻(aq)+2Na⁺(aq)+ SO₄²⁻(aq) → Ag₂SO₄ (s) + 2Na⁺(aq)+ NO₃⁻(aq)
(b) Ba²⁺(aq)+2Cl⁻(aq)+ Zn²⁺(aq)+ SO₄²⁻(aq) → BaSO₄(s) + Zn²⁺(aq)+ 2Cl⁻(aq)
(c) 2NH₄⁺(aq)+CO₃²⁻(aq)+Ca²⁺(aq)+2Cl⁻(aq) → CaCO₃(s)+ 2NH₄⁺(aq)+ 2Cl⁻(aq)
The net ionic reactions:
(a) 2Ag⁺(aq)+ SO₄²⁻(aq) → Ag₂SO₄ (s)
(b) Ba²⁺(aq) + SO₄²⁻(aq) → BaSO₄(s)
(c) CO₃²⁻(aq)+Ca²⁺(aq) → CaCO₃(s)
Work Step by Step
The spectator ions shown in the ionic reactions do not participate in the reaction and should be removed from the net ionic reaction, so:
(a) Na⁺ and NO₃⁻ are spectator ions and should be cancelled.
(b) Zn²⁺ and Cl⁻ are spectator ions.
(c) NH₄⁺ and Cl⁻ are spectator ions.
