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Q.5. Translate the following statements into
chemical equations and then balance them :
(a) Hydrogen gas combines with nitrogen to
form ammonia
(b) Hydrogen sulphide gas burns in air to give
water and sulphur dioxide.
(c) Barium chloride reacts with aluminium
sulphate to give aluminium chloride and
precipitate of barium sulphate.
(d) Potassium metal reacts with water to give
Potassium hydroxide and hydrogen gas.
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Answers
Answer:
(a) Hydrogen gas combines with nitrogen to form ammonia.
H
2
(g)+N
2
(g)→NH
3
The balanced equation for this reaction can be written as:
3H
2
(g)+N
2
(g)→2NH
3
(b) Hydrogen sulphide gas burns in air to give water and sulphur dioxide.
H
2
S(g)+O
2
(g)→H
2
O+SO
2
The balanced equation for this reaction can be written as:
2H
2
S(g)+3O
2
(g)→2H
2
O+2SO
2
(c) Barium chloride reacts with aluminium sulphate to give aluminium chloride and a precipitate of barium sulphate.
BaCl
2
+Al
2
(SO
4
)
3
→AlCl
3
+BaSO
4
↓
The balanced equation for this reaction can be written as:
3BaCl
2
+Al
2
(SO
4
)
3
→2AlCl
3
+3BaSO
4
↓
(d) Potassium metal reacts with water to give potassium hydroxide and hydrogen gas.
K+H
2
O→KOH+H
2
The balanced equation for this reaction can be written as:
2K+2H
2
O→2KOH+H
2
Explanation:
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Answer:
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