1) Molecular equation: MnCl₂(aq) + (NH₄)₂CO₃(aq) → MnCO₃(s) + 2NH₄Cl(aq)
Ionic equation: Mn²⁺(aq) + 2Cl⁻(aq) + 2NH₄⁺(aq) + CO₃²⁻(aq) → MnCO₃(s) + 2NH₄⁺(aq) + 2Cl⁻(aq)
Net ionic equation: Mn²⁺(aq) + CO₃²⁻(aq) → MnCO₃(s)
2) Molecular equation: 2Cr(NO₃)₃(aq) + 3FeSO₄(aq) → Cr₂(SO₄)₃(aq) + 3Fe(NO₃)₂(aq)
Ionic equation: 2Cr³⁺(aq) + 6NO₃⁻(aq) + 3Fe²⁺(aq) + 3SO₄²⁻(aq) → 2Cr³⁺(aq) + 3SO₄²⁻(aq) + 3Fe²⁺(aq) + 6NO₃⁻(aq)
Net ionic equation: No reaction (all ions are spectator ions)
3) Molecular equation: SrBr₂(aq) + K₂SO₄(aq) → SrSO₄(s) + 2KBr(aq)
Ionic equation: Sr²⁺(aq) + 2Br⁻(aq) + 2K⁺(aq) + SO₄²⁻(aq) → SrSO₄(s) + 2K⁺(aq) + 2Br⁻(aq)
Net ionic equation: Sr²⁺(aq) + SO₄²⁻(aq) → SrSO₄(s)
4) Molecular equation: CuSO₄(aq) + K₂CO₃(aq) → CuCO₃(s) + K₂SO₄(aq)
Ionic equation: Cu²⁺(aq) + SO₄²⁻(aq) + 2K⁺(aq) + CO₃²⁻(aq) → CuCO₃(s) + 2K⁺(aq) + SO₄²⁻(aq)
Net ionic equation: Cu²⁺(aq) + CO₃²⁻(aq) → CuCO₃(s)
5) Molecular equation: 2CoBr₃(aq) + 3K₂S(aq) → Co₂S₃(s) + 6KBr(aq)
Ionic equation: 2Co³⁺(aq) + 6Br⁻(aq) + 6K⁺(aq) + 3S²⁻(aq) → Co₂S₃(s) + 6K⁺(aq) + 6Br⁻(aq)
Net ionic equation: 2Co³⁺(aq) + 3S²⁻(aq) → Co₂S₃(s)
Parent Tip: Review the logic above to help your child master the concept of net ionic equations worksheets.
