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 remain in solution, no precipitate forms)
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:
3CuSO₄(aq) + 2K₂CO₃(aq) → Cu₃(CO₃)₂(s) + 3K₂SO₄(aq)
Ionic equation:
3Cu²⁺(aq) + 3SO₄²⁻(aq) + 4K⁺(aq) + 2CO₃²⁻(aq) → Cu₃(CO₃)₂(s) + 4K⁺(aq) + 3SO₄²⁻(aq)
Net ionic equation:
3Cu²⁺(aq) + 2CO₃²⁻(aq) → Cu₃(CO₃)₂(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 equation worksheet.
