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

consider the redox reaction below.\nmg(s) + fe²⁺(aq) → mg²⁺(aq) + fe(s)\nwhich equation is a half - reaction that describes the reduction that is taking place?\no fe²⁺(aq) + 2e⁻ → fe(s)\no mg(s) → mg²⁺(aq) + 2e⁻\no fe²⁺(aq) → fe(s) + 2e⁻\no mg(s) + 2e⁻ → mg²⁺(aq)

consider the redox reaction below.\nmg(s) + fe²⁺(aq) → mg²⁺(aq) + fe(s)\nwhich equation is a half - reaction that describes the reduction that is taking place?\no fe²⁺(aq) + 2e⁻ → fe(s)\no mg(s) → mg²⁺(aq) + 2e⁻\no fe²⁺(aq) → fe(s) + 2e⁻\no mg(s) + 2e⁻ → mg²⁺(aq)

Answer

Answer:

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

Explanation:

Step1: Define reduction

Reduction is gain of electrons.

Step2: Analyze species

In the reaction Mg(s) + Fe$^{2+}$(aq) $\longrightarrow$ Mg$^{2+}$(aq) + Fe(s), Fe$^{2+}$ gains 2 electrons to become Fe.

Step3: Identify half - reaction

The half - reaction for the reduction of Fe$^{2+}$ is Fe$^{2 +}$(aq) + 2e$^-$ $\longrightarrow$ Fe(s).