Final answer:
The result of the reaction between Mg(s) and ZnCl2(aq) in a single replacement reaction is MgCl2(aq) + Zn(s), making option a. MgCl2 + Zn the correct answer.
Step-by-step explanation:
The reaction between Mg(s) and ZnCl2(aq) is a single replacement reaction where magnesium displaces zinc from zinc chloride. The chemical equation for this type of reaction can be illustrated by similar reactions such as:
Therefore, when Mg reacts with ZnCl2, magnesium replaces zinc based on its reactivity, and the balanced chemical equation for this reaction is:
Mg(s) + ZnCl2(aq) → MgCl2(aq) + Zn(s)
The correct option that represents the result of this reaction is a. MgCl2 + Zn.