Balance the following equations :

(i) Na + $O_{2}$ $⟶$ $N a_{2} O$

(ii) $H_{2} O_{2}$ + $⟶$ $H_{2} O + O_{2}$

(iii) $M g (O H)_{2}$ +HCl $⟶$ $M g C l_{2}$ + $H_{2} O$

(iv) Fe + $O_{2}$ $⟶$ $F e_{2} O_{3}$

(v) $A l (O H)_{3}$ $⟶$ $A l_{2} O_{3}$ + $H_{2} O$

(vi) $N H_{3}$ + CuO $⟶$ Cu + $N_{2}$ + $H_{2} O$

(vii) $A l_{2} (S O_{4})_{3}$ + NaOH $⟶$ $A l (O H)_{3}$ + $N a_{2} S O_{4}$

(viii) $H N O_{3}$ + $C a (O H)_{2}$ $⟶$ $C a (N O_{3})_{2}$ + $H_{2} O$

(ix) NaOH + $H_{2} S O_{4}$ $⟶$ $N a_{2} S O_{4}$ + $H_{2} O$

(x) $B a C l_{2}$ + $H_{2} S O_{4}$ $⟶$ $B a_{2} S O_{4}$ + $H C l$

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Solution

(i) 2Na + $\frac{1}{2} (O_{2}$ $⟶$ $N a_{2} O$

(ii) $2 H_{2} O_{2}$ + $⟶$ $2 H_{2} O + O_{2}$

(iii) $M g (O H)_{2}$ +2HCl $⟶$ $M g C l_{2}$ + $2 H_{2} O$

(iv) 4Fe + $3 O_{2}$ $⟶$ $2 F e_{2} O_{3}$

(v) $2 A l (O H)_{3}$ $⟶$ $A l_{2} O_{3}$ + $3 H_{2} O$

(vi) $2 N H_{3}$ + 3CuO $⟶$ 3Cu + $N_{2}$ + $3 H_{2} O$

(vii) $A l_{2} (S O_{4})_{3}$ + 6NaOH $⟶$ $2 A l (O H)_{3}$ + $3 N a_{2} S O_{4}$

(viii) $2 H N O_{3}$ + $C a (O H)_{2}$ $⟶$ $C a (N O_{3})_{2}$ + $2 H_{2} O$

(ix) 2NaOH + $H_{2} S O_{4}$ $⟶$ $N a_{2} S O_{4}$ + $2 H_{2} O$

(x) $B a C l_{2}$ + $H_{2} S O_{4}$ $⟶$ $B a_{2} S O_{4}$ + 2HCl

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Similar questions

Balance the following chemical equations. [3 MARKS]

1. ${HNO}_{3} + {Ca(OH)}_{2} \to {Ca(NO}_{3})_{2} + H_{2} O$
2. $NaOH + H_{2} {SO}_{4} \to {Na}_{2} {SO}_{4} + H_{2} O$
3. ${MnO}_{2} + HCl \to {MnCl}_{2} + {Cl}_{2} + H_{2} O$

Balance the following equations

a)Pb(NO₃)₂ gives PbO +NO₂+O₂

b)NH₃+CuO gives Cu+N₂+H₂O

c)NaOH+H₂SO₄ gives Na₂SO₄ +H₂O

d)Al₄C₃+H₂O gives CH₄+Al(OH)₃

Q. Balance the following equations:

M n O_{2} + H C l \to M n C l_{2} + C l_{2} + H_{2} O

N H_{4} C l + C a (O H)_{2} \to N H_{3} + C a C l_{2} + H_{2} O

B a C l_{2} + A l_{2} (S O_{4})_{3} \to B a S O_{4} + A l C l_{3}

N a A l O_{2} + H_{2} O + C O_{2} \to A l H_{3} + N a_{2} C O_{3}

N H_{3} + O_{2} \to N O + H_{2} O

Z n + H N O_{3} \to Z n (N O_{3})_{2} + N O_{2} + H_{2} O

H_{2} S + O_{2} \to H_{2} O + S O_{2}

P b O + C \to P b + C O_{2}

B a C l_{2} + H_{2} S O_{4} \to B a S O_{4} + H C l

C H_{4} + O_{2} \to C O_{2} + H_{2} O

Q. Balance the following equations:
i)

C a C O_{3} + H C l \to C a C l_{2} + C O_{2} ↑ + H_{2} O

ii)

N a + H_{2} O \to N a O H + H_{2} ↑

iii)

(N H_{4})_{2} S O_{4} + C a (O H)_{2} \to C a S O_{4} + N H_{3} ↑ + H_{2} O

iv)

H g (N O_{3})_{2} \to H g + N O_{2} ↑ + O_{2} ↑

P b_{3} O_{4} + H C l \to P b C l_{2} + C l_{2} ↑ + H_{2} O

Balance the following equation

Al₂(SO₄)₃+NaOH - Al(OH)₃+Na₂SO₄

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