Question

8 multiple choice 2 points recall what happened when iron filings were reacted with cuso₄ (aq). what can one say about the relative reactivities of iron and copper? they are equally reactive fe is more reactive than cu cu is more reactive than fe the reactivities cant be judged

Explanation:

In a single - displacement reaction, a more reactive metal can displace a less reactive metal from its salt solution. When iron filings (\(Fe\)) react with copper sulfate (\(CuSO_{4}\)) solution, the reaction \(Fe + CuSO_{4}
ightarrow FeSO_{4}+Cu\) occurs. Iron displaces copper from copper sulfate solution. This displacement is possible because iron is more reactive than copper. If copper were more reactive than iron, the reverse reaction \(Cu + FeSO_{4}
ightarrow CuSO_{4}+Fe\) would occur, but it does not. Since a reaction takes place where iron replaces copper, they are not equally reactive, and the reactivities can be judged.

Answer:

Fe is more reactive than Cu