Balancing Chemical Equations Worksheet with Answers

There are different methods of balancing a chemical equation. We have already discussed the hit-and-trial method.

Here you will find a worksheet for balancing chemical equations with answers.

 

What is a chemical reaction?

A chemical reaction invloves a chemical change in which two substances react to produce one or more new substanes.

What is a chemical equation?

A chemical equation is the representation of reactants and products in the form of symbols and formulas.

Worksheet for balancing chemical equations

 

    1. KMnO₄ +HCl →KCl + MnCl₂+ H₂O+ Cl₂

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

 

    2. KOH+ H₂SO₄ →K₂SO₄ + H₂O

Ans- 2KOH+ H₂SO₄ →K₂SO₄ + 2H₂O

 

    3. Al(OH)₃+ H₂SO₄ →Al₂(SO₄)₃+ H₂O

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

 

    4. KNO₃ →KNO₂ + O₂

Ans- 2KNO₃ →2KNO₂ + O₂

 

 

    5. Al + O₂→ Al₂O₃

 Ans- 4Al + 3O₂→ 2Al₂O₃

 

    6. HNO₃+Ca(OH)₂ →Ca(NO₃)₂+ H₂O

Ans- 2HNO₃+Ca(OH)₂ →Ca(NO₃)₂+ 2H₂O

 

    7. NaOH+ H₂SO₄ →Na₂SO₄+ H₂O

Ans- 2NaOH+ H₂SO₄ →Na₂SO₄+ 2H₂O

 

 

    8. CH₄ +O₂  →  CO₂ + H₂O

Ans- CH₄ +O₂  →  CO₂ + 2H₂O

 

   _9.      Na+ H₂O → NaOH + H₂

Ans- 2Na+ 2H₂O → 2NaOH + H₂

 

   10.  Fe₂O₃ + HCl → FeCl₂ + H₂O

Ans- Fe₂O₃ + 6HCl → 2FeCl₂ + 3H₂O

 

   11.      C₂H₆  + O₂ → CO₂ + H₂O

Ans- 2C₂H₆  + 7O₂ → 4CO₂ + 6H₂O

 

   _12.  Fe+ O₂ →Fe₂O₃

Ans- 4Fe+ 3O₂ →2Fe₂O₃

 

   13.  KClO₃ →KCl + O₂

Ans- 2KClO₃ →2KCl + 3O₂

 

    _14. Fe + H₂O →Fe₃O₄ + H₂

Ans- 3Fe + 4H₂O →Fe₃O₄ + 4H₂

 

 

   

    _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

 

   22.  ZnCO₃ →ZnO +CO₂

Ans- ZnCO₃ →ZnO +CO₂

 

    23.  H₂+ Cl₂ →HCl

Ans- H₂+ Cl₂ →2HCl

 

   24.Mg +HCl →MgCl₂+ H₂

Ans- Mg +2HCl →MgCl₂+ H₂

 

   25.AgBr →Ag+ Br₂

Ans- 2AgBr →2Ag+ Br₂

 

    26.  AgCl →Ag + Cl₂

Ans- 2AgCl →2Ag + Cl₂

 

    27. Pb(NO₃)₂→PbO +NO₂+O₂

Ans- 2Pb(NO₃)₂→2PbO +4NO₂+O₂

 

    28. FeSO₄ → Fe₂O₃ +SO₂ + SO₃

Ans- 2FeSO₄ → Fe₂O₃ +SO₂ + SO₃

 

    29. H₂S + Cl₂→S + HCl

Ans- H₂S + Cl₂→S + 2HCl

 

    30.   Ba(OH)₂ + HBr →BaBr₂ + H₂O

Ans- Ba(OH)₂ + 2HBr →BaBr₂ + 2H₂O

 

 

   31. KCN+ H₂SO₄ →K₂SO₄ + HCN

Ans- KCN+ H₂SO₄ →K₂SO₄ + HCN

 

    _32. Al + HCl →AlCl₃ + H₂

Ans- 2Al + 6HCl →2AlCl₃ + 3H₂

 

   33.HgCl₂ + SnCl₂ → Hg₂Cl₂ + SnCl₄

Ans- HgCl₂ + SnCl₂ → Hg₂Cl₂ + SnCl₄

 

    _34.PbO₂ + H₂SO₄ →PbSO₄+ H₂O+O₂

Ans- 2PbO₂ + 2H₂SO₄ →2PbSO₄+ 2H₂O+O₂

    _35. C+ O₂ →CO₂

    

    Ans -  C+ O₂ →CO₂

 

    36.  Al + Fe₂O₃ →Al₂O₃ + Fe

Ans- 2Al + Fe₂O₃ →Al₂O₃ + 2Fe

 

    _37.  N₂ + H₂ →NH₃

Ans- N₂ + 3H₂ →2NH₃

 

    38.  NH₃ + HCl →NH₄Cl

Ans- NH₃ + HCl →NH₄Cl

 

    _39.   H₂O →H₂ + O₂

Ans- 2H₂O →2H₂ + O₂

 

    40.  NH₄Cl →NH₃ + HCl

Ans- NH₄Cl →NH₃ + HCl

 

 

   41.  NH₃+ H₂O →NH₄OH

Ans- NH₃+ H₂O →NH₄OH

 

 

    _42.  Zn +H₂SO₄ →ZnSO₄ +H₂

Ans- Zn +H₂SO₄ →ZnSO₄ +H₂

 

    _43.  BaCl₂ + ZnSO₄ →ZnCl₂ + BaSO₄

Ans- BaCl₂ + ZnSO₄ →ZnCl₂ + BaSO₄

 

    _44. NH₃ + H₂SO₄ →(NH₃)₂SO₄

Ans- 2NH₃ + H₂SO₄ →(NH₃)₂SO₄

 

    45.   CuO + H₂ →Cu + H₂O

Ans- CuO + H₂ →Cu + H₂O

 

    _46.  NH₄NO₂ →H₂O + N₂

Ans- NH₄NO₂ →2H₂O + N₂

 

   47.   NaBr + Cl₂ →NaCl + Br₂

Ans- 2NaBr + Cl₂ →2NaCl + Br₂

 

    48.  MgO + C →CO₂ + Mg

Ans- 2MgO + C →CO₂ + 2Mg

 

   _49.  CaCO₃ + HCl →CaCl₂ + H₂O +CO₂

Ans- CaCO₃ + 2HCl →CaCl₂ + H₂O +CO₂

 

   50.   Al₂O₃ + H₂SO₄ →Al₂(SO₄)₃ + H₂O

Ans- Al₂O₃ + 3H₂SO₄ →Al₂(SO₄)₃ + 3H₂O

 FAQs

1. What are balanced chemical reactions?

Ans-  The chemical reactions in which number of atoms of reactants and products are same, so these reactions are called balanced chemical reactions.