Thursday, April 20, 2017

CBSE Class 10 - Chemistry - Chapter 1 - Chemical Reactions and Equations (#cbsenotes)

Chemical Reactions and Equations 

CBSE Class 10 - Chemistry - Chapter 1 
CBSE Class 10 - Chemistry - Chapter 1 - Chemical Reactions and Equations (#cbsenotes)

Worksheet on Balancing Chemical Equations


Question: Balance the following chemical equations.

Al(s) + Fe₂O₃(s) ---⤑  Al₂O₃(s) + Fe(s)

Na(s) + H₂O ---⤑ NaOH + H₂

NH₃(g) + O₂(g) ---⤑ NO(g) + H₂O(g)

Fe(s) + H₂O(g) ---⤑  Fe₃O₄(s) + H₂(g)

NaOH + H₂SO₄ ---⤑  Na₂SO₄ + H₂O

Hg(NO₃)₂ + KI ---⤑ HgI₂ + KNO₃



H₂ (g) + O₂ (g) ---⤑  H₂O (l)

KClO₃  ---⤑ KCl + O₂

C₃H₈ + O₂ ---⤑ CO₂ + H₂O

Al + O₂  ---⤑ Al₂O₃

NH₃ + O₂  ---⤑ NO + H₂O

Fe₂O₃ + CO ---⤑  Fe + CO₂

Pb₃O₄ + HCl ---⤑ PbCl₂ + Cl₂ + H₂O

Al + CuCl₂ ---⤑ AlCl₃ + Cu

H₂ + Cl₂ ---⤑  HCl

AgBr  ---⤑ Ag + Br₂

KMnO₄  + C₂H₂O₄  + H₂SO₄  ---⤑ K₂SO₄  + MnSO₄  + CO₂ + H₂O

Ba + H₂O ---⤑  Ba(OH)₂  + H₂

Al + H₂O ---⤑ Al₂O₃ + H₂

HgS + O₂ ---⤑ HgO  + SO₂




Answers:
2Al(s) + Fe₂O₃(s) ---⤑  Al₂O₃(s) + 2Fe(s)
2Na(s) + 2H₂O ---⤑ 2NaOH + H₂
4NH₃(g) + 5O₂(g) ---⤑ 4NO(g) + 6H₂O(g)
3Fe(s) + 4H₂O(g) ---⤑  Fe₃O₄(s) + 4H₂(g)
2NaOH + H₂SO₄ ---⤑  Na₂SO₄ + 2H₂O
Hg(NO₃)₂ + 2KI ---⤑ HgI₂ + 2KNO₃
2H₂ (g) + O₂ (g) ---⤑  2H₂O (l)
2KClO₃  ---⤑ 2KCl + 3O₂
C₃H₈ + 5O₂ ---⤑ 3CO₂ + 4H₂O
4Al + 3O₂  ---⤑ 2Al₂O₃
4NH₃ + 5O₂  ---⤑ 4NO + 6H₂O
Fe₂O₃ + 3CO ---⤑  2Fe + 3CO₂
Pb₃O₄ + 8HCl ---⤑ 3PbCl₂ + Cl₂ + 4H₂O
2Al + 3CuCl₂ ---⤑ 2AlCl₃ + 3Cu
H₂ + Cl₂ ---⤑  2HCl
2AgBr  ---⤑ 2Ag + Br₂
2KMnO₄  + 5C₂H₂O₄  + 3H₂SO₄  ---⤑ K₂SO₄  + 2MnSO₄  + 10CO₂ + 8H₂O
Ba + 2H₂O ---⤑  Ba(OH)₂  + H₂
2Al + 3H₂O ---⤑ Al₂O₃ + 3H₂
2HgS + 3O₂ ---⤑ 2HgO  + 2SO₂

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