Consider the Following Electrode Potentials: Mg²⁺ + 2e^- \9\to\) Mg $\varepsilon$

question 35

Multiple Choice

Consider the following electrode potentials: Mg²⁺ + 2e^- \9\to\) Mg
$\varepsilon$ ^$\circ$ = -2.37 V
V²⁺ + 2e^- $\to$ V
$\varepsilon$ ^$\circ$ = -1.19 V
Cu²⁺ + e^- $\to$ Cu⁺
$\varepsilon$ ^$\circ$ = 0.16 V
Which one of the reactions below will proceed spontaneously from left to right?

• A)Mg²⁺ + V \(\to\) V²⁺ + Mg
• B)Mg²⁺ + 2Cu⁺ \(\to\) 2Cu²⁺ + Mg
• C)V²⁺ + 2Cu⁺ \(\to\) V + 2Cu²⁺
• D)V + 2Cu²⁺ \(\to\) V²⁺ + 2Cu⁺
• E)none of these

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