Consider the Following Standard Reduction Potentials

question 55

Multiple Choice

Consider the following standard reduction potentials:
Mg²⁺(aq) + 2e^-
Mg(s) ; E° = -2.38 V
V²⁺(aq) + 2e^-
V(s) ; E° = -1.18 V
Cu²⁺(aq) + e^-
Cu⁺(aq) ; E° = 0.15 V
Which of the following reactions will proceed spontaneously from left to right under standard-state conditions?

• A)Mg(s)+ 2Cu²⁺(aq)→ Mg²⁺(aq)+ 2Cu⁺(aq)
• B)V²⁺(aq)+ 2Cu⁺(aq)→ V(s)+ 2Cu²⁺(aq)
• C)Mg²⁺(aq)+ 2Cu⁺(aq)→ 2Cu²⁺(aq)+ Mg(s)
• D)Mg²⁺(aq)+ V(s)→ V²⁺(aq)+ Mg(s)
• E)2Cu²⁺(aq)+ 2Cu⁺(aq)→ Mg²⁺(aq)+ Mg(s)

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