Worksheet for practicing balancing chemical equations with various chemical reactions.

Balancing chemical equations worksheet with 20 numbered problems requiring coefficients to balance reactants and products.

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Show Answer Key & Explanations Step-by-step solution for: Balancing Chemical Equations (Hard) Worksheet GCSE - rocketsheets

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1. 2H₂ + O₂ → 2H₂O
2. H₃PO₄ + 3KOH → K₃PO₄ + 3H₂O
3. 2K + B₂O₃ → K₂O + 2B
4. HCl + NaOH → NaCl + H₂O
5. 6Na + 2NaNO₃ → 4Na₂O + N₂
6. C + 2S → CS₂
7. 4Na + O₂ → 2Na₂O
8. 2N₂ + O₂ → 2N₂O
9. 2H₃PO₄ + 3Mg(OH)₂ → Mg₃(PO₄)₂ + 6H₂O
10. 2NaOH + H₂CO₃ → Na₂CO₃ + 2H₂O
11. KOH + HBr → KBr + H₂O
12. 2H₂ + O₂ → 2H₂O
13. 4Na + O₂ → 2Na₂O
14. 2Al(OH)₃ + 3H₂CO₃ → Al₂(CO₃)₃ + 6H₂O
15. 2Al + 3S → Al₂S₃
16. 2Cs + N₂ → 2CsN
17. Mg + Cl₂ → MgCl₂
18. 2Rb + 2RbNO₃ → 2Rb₂O + N₂
19. 2C₆H₆ + 15O₂ → 12CO₂ + 6H₂O
20. N₂ + 3H₂ → 2NH₃

Parent Tip: Review the logic above to help your child master the concept of balancing chemical reactions worksheets.

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