50 examples of balanced chemical equations with answers

There are different methods of balancing a chemical equation. We have already discussed hit and trial method. Today we will go through some examples of balanced chemical equations with answers.

Examples of Balanced Chemical Equations

1.CH4 +O2 → CO2 + H2O

Ans- CH4 +O2 → CO2 + 2H2O

2.Na+ H2O → NaOH + H2

Ans- 2Na+ 2H2O → 2NaOH + H2

3.Fe_2O3 + HCl → FeCl2 + H2O

Ans- Fe2O3 + 6HCl → 2FeCl2 +3 H2O

4.C2H6+ O2 → CO2 + H2O

Ans- 2C2H6+ 7O2 → 4CO2 + 6H2O

5.Fe+ O2 →Fe2O3

Ans- 4Fe+ 3O2 →2Fe2O3

6.KClO3 →KCl + O2

Ans- 2KClO3 →2KCl + 3O2

7.Fe + H2O →Fe3O4 + H2

Ans- 3Fe + 4H2O →Fe3O4 + 4H2

8.KMnO4 +HCl →KCl + MnCl2+ H2O+ Cl2

Ans- 2KMnO4 +16 HCl →2KCl + 2MnCl2+ 8H2O+ 5Cl2

9.KOH+ H2SO4 →K2SO4 + H2O

Ans- 2KOH+ H2SO4 →K2SO4 + 2H2O

10.Al(OH)3+ H2SO4 →Al2(SO4)3+ H2O

Ans- 2Al(OH)3+ 3H2SO4 →Al2(SO4)3+ 6H2O

11.KNO3 →KNO2 + O2

Ans- 2KNO3 →2KNO2 + O2

12.Al + O2→ Al2O3

Ans- 4Al + 3O2→ 2Al2O3

13.HNO3+Ca(OH)2 →Ca(NO3)2+ H2O

Ans- 2HNO3+Ca(OH)2 →Ca(NO3)2+ 2H2O

14.NaOH+ H2SO4 →Na2SO4+ H2O

Ans- 2NaOH+ H2SO4 →Na2SO4+ 2H2O

15.NaCl+ AgNO3→AgCl + NaNO3

Ans- NaCl+ AgNO3→AgCl + NaNO3

16.BaCl2+ H2SO4 →BaSO4 + HCl

Ans- BaCl2+ H2SO4 →BaSO4 + 2HCl

17.Ca(OH)2+CO2 →CaCO3+ H2O

Ans- Ca(OH)2+CO2 →CaCO3+ H2O

18.Zn+ AgNO3 →Zn(NO3)2 + Ag

Ans- Zn+ 2AgNO3 →Zn(NO3)2 + 2Ag

19.Al+CuCl2 →AlCl3+ Cu

Ans- 2Al+3CuCl2 →2AlCl3+ 3Cu

20.BaSO4 +K2SO4→BaSO4+KCl

Ans- BaSO4 +K2SO4→BaSO4+2KCl

21.KBr+ BaI2→ KI +BaBr2

Ans- 2KBr+ BaI2 →2KI BaBr2

21.ZnCO3 →ZnO +CO2

Ans- ZnCO3 →ZnO +CO2

22.H2+ Cl2 →HCl

Ans- H2+ Cl2 →2HCl

23.Mg +HCl →MgCl2+ H2

Ans- Mg +2HCl →MgCl2+ H2

24.AgBr →Ag+ Br2

Ans- 2AgBr →2Ag+ Br2

25.AgCl →Ag + Cl2

Ans- 2AgCl →2Ag + Cl2

26.Pb(NO3)2→PbO +NO2+O2

Ans- 2Pb(NO3)2→2PbO +4NO2+O2

27.FeSO4 → Fe2O3 +SO2 + SO3

Ans- 2FeSO4 → Fe2O3 +SO2 + SO3

28.H2S + Cl2→S + HCl

Ans- H2S + Cl2→S + 2HCl

29.Ba(OH)2 + HBr →BaBr2 + H2O

Ans-Ba(OH)2 + HBr →BaBr2 + H2O

30.KCN+ H2SO4 →K2SO4 + HCN

Ans- KCN+ H2SO4 →K2SO4 + HCN

31.Al + HCl →AlCl3 + H2

Ans- 2Al + 6HCl →2AlCl3 + 3H2

32.HgCl2 + SnCl2 → Hg2Cl2 + SnCl4

Ans- HgCl2 + SnCl2 → Hg2Cl2 + SnCl4

33.PbO2 + H2SO4 →PbSO4+ H2O+O2

Ans- 2PbO2 + 2H2SO4 →2PbSO4+ 2H2O+O2

34.Al + Fe2O3→Al2O3 + Fe

Ans- 2Al + Fe2O3→Al2O3 + 2Fe

35.N2 + 3H2 →NH3

Ans- N2 + 3H2 →2NH3

36.NH3+ HCl →NH4Cl

Ans- NH3+ HCl →NH4Cl

37.H2O →H2 + O2

Ans- 2H2O →2H2 + O2

38.NH4Cl →NH3 + HCl

Ans- NH4Cl →NH3 + HCl

39.NH3+ H2O →NH4OH

Ans- NH3+ H2O →NH4OH

40.Zn +H2SO4 →ZnSO4 +H2

Ans- Zn +H2SO4 →ZnSO4 +H2

41.BaCl2 + ZnSO4 →ZnCl2 + BaSO4

Ans- BaCl2 + ZnSO4 →ZnCl2 + BaSO4

42.NH3 + H2SO4 →(NH3)2SO4

Ans- 2NH3 + H2SO4 →(NH3)2SO4

43.CuO + H2 →Cu + H2O

Ans- CuO + H2 →Cu + H2O

44.NH4NO2 →H2O + N2

Ans- NH4NO2 →2H2O + N2

45.NaBr + Cl2 →NaCl + Br2

Ans- 2NaBr + Cl2 →2NaCl + Br2

46.MgO + C →CO2 + Mg

Ans- MgO + C →CO2 + Mg

47.CaCO3 + HCl →CaCl2 + H2O +CO2

Ans- CaCO3 + 2HCl →CaCl2 + H2O +CO2

48.Al2O3 + H2SO4 →Al2(SO4)3 + H2O

Ans- Al2O3 + 3H2SO4 →Al2(SO4)3 + 3H2O

49.Al2(SO4)3+ NaOH →Al(OH)3 + Na2SO4

Ans- Al2(SO4)3+ 6NaOH →2Al(OH)3 + 3Na2SO4

50. C+ O2 →CO2

Ans – C+ O2 →CO2

So, learn these examples of balanced chemical equations for your board exams. You can also learn Hit and Trail method to balance the chemical equations.