Which selection is an example of a decomposition reaction?

2 K + F_{2} \to 2 K F

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2 A l + 6 H C l \to 2 A l {C l}_{3} + 3 H_{2}

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C_{3} H_{8} + 5 O_{2} \to 3 {C O}_{2} + 4 H_{2} O

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2 N a H {C O}_{3} \to {N a}_{2} {C O}_{3} + H_{2} O + {C O}_{2}

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Solution

The correct option is D $2 N a H {C O}_{3} \to {N a}_{2} {C O}_{3} + H_{2} O + {C O}_{2}$
According to the definition of the decomposition reaction
This is decomposition reaction because sodium by carbonate dissociated into sodium carbonate, water and carbon dioxide.

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Similar questions

2 A l + 6 H C l \to 2 A l C l_{3} + 3 H_{2}

A l C l_{3}

Δ H - Δ U

C_{3} H_{8}

{5 O}_{2}

⟶

{3 C O}_{2}

{4 H}_{2} O (ℓ)

{N a}_{2} {C O}_{3} + {C O}_{2} + H_{2} O ⟶

Is this balanced correctly?

2Al+6HCl=2AlCl₃+3H₂

C_{3} H_{8} + 5 O_{2} \to 3 C O_{2} + H_{2} O

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