Question

fe(s) + cuso₄(aq) → feso₄(aq) + cu(s)
this chemical equation represents a ______ reaction.
a synthesis
b decomposition
c neutralization
d single replacement

Explanation:

In a single - replacement reaction, one element replaces another element in a compound. Here, iron (Fe) replaces copper (Cu) in copper sulfate ($CuSO_4$) to form iron sulfate ($FeSO_4$) and copper (Cu). Synthesis reactions involve combining two or more substances to form one product. Decomposition reactions involve one substance breaking down into two or more substances. Neutralization reactions are between an acid and a base to form a salt and water.

Answer:

D. single replacement