Multiple Choice
Which substance is the oxidizing agent in the following reaction: ZnO + C → Zn + CO?
6. Chemical Quantities & Aqueous Reactions
Redox Reactions
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Which type of reaction involves both synthesis and decomposition?
A
Single displacement reaction
B
Redox reaction
C
Combustion reaction
D
Reversible reaction
Verified step by step guidance1
Understand the definitions: A synthesis reaction involves combining two or more substances to form a new compound, while a decomposition reaction involves breaking down a compound into simpler substances.
Identify the characteristics of a reversible reaction: In a reversible reaction, the reactants form products, which can then react to form the original reactants. This means both synthesis and decomposition processes occur.
Consider the other options: A single displacement reaction involves one element replacing another in a compound, a redox reaction involves the transfer of electrons, and a combustion reaction involves a substance reacting with oxygen to produce heat and light.
Analyze why a reversible reaction fits the criteria: Since a reversible reaction can proceed in both forward (synthesis) and reverse (decomposition) directions, it inherently involves both types of reactions.
Conclude that a reversible reaction is the type of reaction that involves both synthesis and decomposition, as it allows the formation and breakdown of compounds in a dynamic equilibrium.
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