Consider the Following Standard Reduction Potentials Which Reaction A-D Will Proceed Spontaneously as Written from Left

question 96

Multiple Choice

Consider the following standard reduction potentials. $$\begin{array} { | l | c | } \hline { \text { Reduction Half-Reaction } } & \mathbf { E } ^ { 0 } \text { (volts) } \\\hline \mathrm { Mg } ^ { 2 + } ( a q ) + 2 \mathrm { e } ^ { - } \longrightarrow \mathrm { Mg } ( s ) & - 2.38 \\\hline \mathrm { Zn } ^ { 2 + } ( a q ) + 2 \mathrm { e } ^ { - } \longrightarrow \mathrm { Zn } ( s ) & - 0.76 \\\hline \mathrm { Cu } ^ { 2 + } ( a q ) + \mathrm { e } ^ { - } \longrightarrow \mathrm { Cu } ^ { + } ( a q ) & 0.16 \\\hline\end{array}$$ Which reaction A-D will proceed spontaneously as written from left to right?

• A) Mg²⁺(aq) + Zn(s) \(\longrightarrow\)Mg(s) + Zn²⁺(aq)
• B) Mg²⁺(aq) + 2Cu⁺(aq) \(\longrightarrow\)Mg(s) + 2Cu²⁺(aq)
• C) Zn²⁺(aq) + 2Cu⁺(aq)\(\longrightarrow\)Zn(s) + 2Cu²⁺(aq)
• D) Zn(s) + 2Cu²⁺(aq) \(\longrightarrow\)Zn²⁺(aq) + 2Cu⁺(aq)
• E) None of these will proceed spontaneously.

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