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Combination Reaction

What type of ...

Question

What type of reactions are represented by the following equations ?

(i) $C a C O_{3} ⟶ C a O + C O_{2}$

(ii) $C a O + H_{2} O ⟶ C a (O H)_{2}$

(iii) $2 F e S O_{4} ⟶ F e_{2} O_{3} + S O_{2} + S O_{3}$

(iv) $N H_{4} C l ⟶ N H_{3} + H C l$

(v) $2 C a + O_{2} ⟶ 2 C a O$

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Solution

(i) Decomposition reaction.
(ii) Combination reaction.
(iii) Decomposition reaction.
(iv) Decomposition reaction.
(v) Combination reaction.

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C d C l_{2} + 2 K O H \to C d (O H)_{2} + 2 K C l

B a C l_{2} + K_{2} S O_{4} \to B a S O_{4} + 2 K C l

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2 N a C l + C a C O_{3} \to N a_{2} C O_{3} + C a C l_{2}

C a C O_{3} Δ - \to [A] + [B]

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N a_{2} C O_{3}

N a_{3} C O_{3}

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