Practice Problems on Net Ionic Equations - Free Printable

1. Total Ionic: Ag⁺(aq) + NO₃⁻(aq) + K⁺(aq) + Cl⁻(aq) → AgCl(s) + K⁺(aq) + NO₃⁻(aq)
Net Ionic: Ag⁺(aq) + Cl⁻(aq) → AgCl(s)

2. Total Ionic: Mg²⁺(aq) + 2NO₃⁻(aq) + 2Na⁺(aq) + CO₃²⁻(aq) → MgCO₃(s) + 2Na⁺(aq) + 2NO₃⁻(aq)
Net Ionic: Mg²⁺(aq) + CO₃²⁻(aq) → MgCO₃(s)

3. Total Ionic: Sr²⁺(aq) + 2Br⁻(aq) + 2K⁺(aq) + SO₄²⁻(aq) → SrSO₄(s) + 2K⁺(aq) + 2Br⁻(aq)
Net Ionic: Sr²⁺(aq) + SO₄²⁻(aq) → SrSO₄(s)

4. Total Ionic: Mn²⁺(aq) + 2Cl⁻(aq) + 2NH₄⁺(aq) + CO₃²⁻(aq) → MnCO₃(s) + 2NH₄⁺(aq) + 2Cl⁻(aq)
Net Ionic: Mn²⁺(aq) + CO₃²⁻(aq) → MnCO₃(s)

5. Total Ionic: Cr³⁺(aq) + 3NO₃⁻(aq) + Fe²⁺(aq) + SO₄²⁻(aq) → Cr³⁺(aq) + SO₄²⁻(aq) + Fe²⁺(aq) + 3NO₃⁻(aq)
Net Ionic: No reaction (all species are spectator ions)

6. 2K₃PO₄(aq) + Al₂(SO₄)₃(aq) → 2AlPO₄(s) + 3K₂SO₄(aq)
Total Ionic: 6K⁺(aq) + 2PO₄³⁻(aq) + 2Al³⁺(aq) + 3SO₄²⁻(aq) → 2AlPO₄(s) + 6K⁺(aq) + 3SO₄²⁻(aq)
Net Ionic: 2Al³⁺(aq) + 2PO₄³⁻(aq) → 2AlPO₄(s) or simplified: Al³⁺(aq) + PO₄³⁻(aq) → AlPO₄(s)

7. BeI₂(aq) + Cu₂SO₄(aq) → BeSO₄(aq) + 2CuI(s)
Total Ionic: Be²⁺(aq) + 2I⁻(aq) + 2Cu⁺(aq) + SO₄²⁻(aq) → Be²⁺(aq) + SO₄²⁻(aq) + 2CuI(s)
Net Ionic: 2Cu⁺(aq) + 2I⁻(aq) → 2CuI(s) or simplified: Cu⁺(aq) + I⁻(aq) → CuI(s)

8. Ni(NO₃)₂(aq) + 2KBr(aq) → NiBr₂(aq) + 2KNO₃(aq)
Total Ionic: Ni²⁺(aq) + 2NO₃⁻(aq) + 2K⁺(aq) + 2Br⁻(aq) → Ni²⁺(aq) + 2Br⁻(aq) + 2K⁺(aq) + 2NO₃⁻(aq)
Net Ionic: No reaction (all species are spectator ions)

9. 2CoBr₃(aq) + 3K₂S(aq) → Co₂S₃(s) + 6KBr(aq)
Total Ionic: 2Co³⁺(aq) + 6Br⁻(aq) + 6K⁺(aq) + 3S²⁻(aq) → Co₂S₃(s) + 6K⁺(aq) + 6Br⁻(aq)
Net Ionic: 2Co³⁺(aq) + 3S²⁻(aq) → Co₂S₃(s)

10. 3Ba(NO₃)₂(aq) + 2(NH₄)₃PO₄(aq) → Ba₃(PO₄)₂(s) + 6NH₄NO₃(aq)
Total Ionic: 3Ba²⁺(aq) + 6NO₃⁻(aq) + 6NH₄⁺(aq) + 2PO₄³⁻(aq) → Ba₃(PO₄)₂(s) + 6NH₄⁺(aq) + 6NO₃⁻(aq)
Net Ionic: 3Ba²⁺(aq) + 2PO₄³⁻(aq) → Ba₃(PO₄)₂(s)

11. 3Ca(OH)₂(aq) + 2FeCl₃(aq) → 2Fe(OH)₃(s) + 3CaCl₂(aq)
Total Ionic: 3Ca²⁺(aq) + 6OH⁻(aq) + 2Fe³⁺(aq) + 6Cl⁻(aq) → 2Fe(OH)₃(s) + 3Ca²⁺(aq) + 6Cl⁻(aq)
Net Ionic: 2Fe³⁺(aq) + 6OH⁻(aq) → 2Fe(OH)₃(s) or simplified: Fe³⁺(aq) + 3OH⁻(aq) → Fe(OH)₃(s)

12. 2RbF(aq) + CuSO₄(aq) → Rb₂SO₄(aq) + CuF₂(aq)
Total Ionic: 2Rb⁺(aq) + 2F⁻(aq) + Cu²⁺(aq) + SO₄²⁻(aq) → 2Rb⁺(aq) + SO₄²⁻(aq) + Cu²⁺(aq) + 2F⁻(aq)
Net Ionic: No reaction (all species are spectator ions)