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

Question 29

Multiple Choice

Consider the following standard reduction potentials.  Reduction Half-Reaction E0 (volts)  Mg2+(aq) +2eMg(s) 2.38Zn2+(aq) +2eZn(s) 0.76Cu2+(aq) +eCu+(aq) 0.16\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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