Chemistry worksheet for balancing chemical equations, including question and answer sheets with molecular structures.

Balancing Chemical Equations (Hard) Answer Sheet and Question Sheet for Chemistry, featuring chemical equations and molecular diagrams on a red background.

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1. 4 OH⁻ → 2 H₂O + O₂ + 4 e⁻
2. PCl₃ + 3 H₂O → P(OH)₃ + 3 HCl
3. P₄O₁₀ + 6 HCl → 4 POCl₃ + 2 HPO₃
4. 2 Na + 2 H₂O → 2 NaOH + H₂
5. 2 MgNH₄PO₄ → Mg₂P₂O₇ + 2 NH₃ + H₂O
6. 4 NO + 3 H₂O + 2 O₂ → 4 HNO₃
7. Al(ClO₄)₃ + 3 KBr → AlBr₃ + 3 KClO₄
8. 2 Cu(CN)₂ → 2 CuCN + C₂N₂
9. 4 HCl + MnO₂ → MnCl₂ + 2 H₂O + Cl₂
10. 2 NaOH + H₂SO₄ → Na₂SO₄ + 2 H₂O
11. CaHPO₄·2H₂O + 2 NaOH + 10 H₂O → Na₂HPO₄·12H₂O + Ca(OH)₂
12. 3 FeSO₄ + 2 K₃[Fe(CN)₆] → Fe₃[Fe(CN)₆]₂ + 3 K₂SO₄
13. 2 MgNH₄PO₄ → Mg₂P₂O₇ + 2 NH₃ + H₂O
14. 2 H₃PO₄ + 3 BaO → 3 H₂O + Ba₃(PO₄)₂
15. 2 AlBr₃ + 3 K₂SO₄ → 6 KBr + Al₂(SO₄)₃
16. 2 HCN + CuSO₄ → H₂SO₄ + Cu(CN)₂
17. 4 LiH + AlCl₃ → 3 LiAlH₄ + LiCl

Parent Tip: Review the logic above to help your child master the concept of balancing chemical equations worksheet 2.

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