Of the reactions below,which one is a decomposition reaction? A)NH₄Cl → NH₃ + HCl B)2Mg + O₂ → 2MgO C)2N₂ + 3H₂ → 2NH₃ D)2CH₄ + 4O₂ → 2CO₂ + 4H₂O E)Cd(NO₃)₂ + Na₂S → CdS + 2NaNO₃

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A decomposition reaction involves a single compound breaking down into two or more simpler substances. Choice A represents this type of reaction, where a single compound decomposes into two different substances.

Of the Reactions Below,which One Is a Decomposition Reaction