consider the redox reaction below. mg(s) + fe2+(aq)→mg2+(aq) + fe(s) which equation is a half - reaction…

consider the redox reaction below. mg(s) + fe2+(aq)→mg2+(aq) + fe(s) which equation is a half - reaction that describes the reduction that is taking place? o fe2+(aq) + 2e−→fe(s) o mg(s)→mg2+(aq)+2e− o fe2+(aq)→fe(s) + 2e− o mg(s) + 2e−→mg2+(aq)

consider the redox reaction below. mg(s) + fe2+(aq)→mg2+(aq) + fe(s) which equation is a half - reaction that describes the reduction that is taking place? o fe2+(aq) + 2e−→fe(s) o mg(s)→mg2+(aq)+2e− o fe2+(aq)→fe(s) + 2e− o mg(s) + 2e−→mg2+(aq)

Answer

Brief Explanations:

Reduction is the gain of electrons. In the given redox - reaction, iron(II) ions gain electrons to form iron metal. The half - reaction for reduction shows the species gaining electrons. Among the options, the equation $\ce{Fe^{2 + }(aq)+2e^{-}\longrightarrow Fe(s)}$ represents the gain of 2 electrons by $\ce{Fe^{2+}}$ to form $\ce{Fe}$, which is a reduction half - reaction.

Answer:

$\ce{Fe^{2 + }(aq)+2e^{-}\longrightarrow Fe(s)}$