AQA AS Chemistry Balancing Equations Practise

28 questions for you to practise balancing equations with answers for you to check your progress.

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Balancing Equations Practise
(Answers at bottom)
Print these questions out and fill in the blanks where appropriate.
1. ____C2H5OH + ____O2 ____CO2 + ____H2O
2. ____Al + ____NaOH ____Na3AlO3 + ____H2
3. ____CO2 + ____H2O ____C6H12O6 + ____O2
4. ____C3H8 + ____O2 ____CO2 + ____H2O
5. ____Ca + ____H2O ____Ca(OH)2 + ____H2
6. ____Fe2O3 + ____CO ____Fe + ____CO2
7. ____NaHCO3 + ____H2SO4 ____Na2SO4 + ____CO2 + ____H2O
8. ____Mg + ____HNO3 ____Mg(NO3)2 + ____H2
9. ____CuCl2 + ____NaOH ____Cu(OH)2 + ____NaCl
10. ____SO2 + ____O2 ____SO3
11. ____C3H8 + ____O2 ____CO2 + ____H2O
12. ____Fe + ____H2SO4 ____Fe2(SO4)3 + ____H2
13. ____C2H6 + ____O2 ____H2O + ____CO2
14. ____KOH + ____H3PO4 ____K3PO4 + ____H2O
15. ____SnO2 + ____H2 ____Sn + ____H2O
16. ____NH3 + ____O2 ____NO + ____H2O
17. ____KNO3 + ____H2CO3 ____K2CO3 + ____NHO3
18. ____B2Br6 + ____HNO3 ____B(NO3)3 + ____HBr

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BF3 + ____Li2SO3 ____B2(SO3)3 + ____LiF
20. ____(NH4)3PO4 + ____Pb(NO3)4 ____Pb3(PO4)4 + ____NH4NO3
21. ____SeCl6 + ____O2 ____SeO2 + ____Cl2
22. ____CH4 + ____O2 ____CO2 + ____H2O
23. ____Al + ____O2 ____Al2O3
24. ____CO + ____H2 ____C8H18 + ____H2O
25. ____FeO3 + ____CO ____Fe + ____CO2
26. ____H2SO4 + ____Pb(OH)4 ____Pb(SO4)2 + ____H2O
27. ____Al + ____HCl ____AlCl3 + ____H2
28. ____Ca3(PO4)2 + ____H2SO4 ____CaSO4 +____Ca(H2PO4)2
Answers
1. C2H5OH + 3O2 2CO2 + 3H2O
2. 2Al + 6NaOH 2Na3AlO3 + 3H2
3.…read more

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SO2 + O2 2SO3
11. C3H8 + 5O2 3CO2 + 4H2O
12. 2Fe + 3H2SO4 Fe2(SO4)3 + 3H2
13. 2C2H6 + 7O2 6H2O + 4CO2
14. 3KOH + H3PO4 K3PO4 + 3H2O
15. SnO2 + 2H2 Sn + 2H2O
16. 4NH3 + 5O2 4NO + 6H2O
17. 2KNO3 + H2CO3 K2CO3 + 2NHO3
18. B2Br6 + 6HNO3 2B(NO3)3 + 6HBr
19. 2BF3 + 3Li2SO3 B2(SO3)3 + 6LiF
20. 4(NH4)3PO4 + 3Pb(NO3)4 Pb3(PO4)4 + 12NH4NO3
21. SeCl6 + O2 SeO2 + 3Cl2
22.…read more

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