Question

question 7 of 10
what kind of reaction is represented by fe + cuso₄ → cu + feso₄?

a. a single - replacement reaction
b. a synthesis reaction
c. a decomposition reaction
d. a double - replacement reaction

Explanation:

To determine the reaction type, we analyze the equation \( \text{Fe} + \text{CuSO}_4
ightarrow \text{Cu} + \text{FeSO}_4 \). A single - replacement reaction follows the pattern \( \text{A}+\text{BC}
ightarrow\text{B}+\text{AC} \), where an element replaces another element in a compound. Here, iron (Fe) replaces copper (Cu) in copper sulfate (\( \text{CuSO}_4 \)) to form iron sulfate (\( \text{FeSO}_4 \)) and copper (Cu). A synthesis reaction is when two or more substances combine to form a single product (e.g., \( \text{A}+\text{B}
ightarrow\text{AB} \)), which is not the case here. A decomposition reaction is the breakdown of a compound into simpler substances (e.g., \( \text{AB}
ightarrow\text{A}+\text{B} \)), and this reaction does not fit that pattern. A double - replacement reaction involves the exchange of ions between two compounds (e.g., \( \text{AB}+\text{CD}
ightarrow\text{AD}+\text{CB} \)), and since we have an element and a compound reacting, not two compounds, it is not a double - replacement reaction. So, the reaction is a single - replacement reaction.

Answer:

A. A single - replacement reaction