Which of the following reactions will occur spontaneously as written?
A) 3Fe2+ (aq) + Cr3+ (aq) → Cr (s) + 3Fe3+ (aq)
B) 2Cr3+ (aq) + 3Sn2+ (aq) → 3Sn4+ (aq) + 2Cr (s)
C) Sn4+ (aq) + Fe2+ (s) → Sn2+ (aq) + Fe (s)
D) Sn2+ (aq) + Fe2+ (s) → Sn4+ (aq) + Fe3+ (aq)
E) 2Cr (s) + 3Fe2+ (s) → 3Fe (s) + 2Cr3+ (aq)
Correct Answer:
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