A voltaic cell is prepared in which copper metal is oxidized to Cu(II) , and silver ion is reduced to silver metal. Which of the following represents the equation for the reaction that occurs at the anode?
A) Cu(s) - 2e- → Cu2+(aq)
B) Cu(s) → Cu2+(aq) + 2e-
C) 2Cu(s) → 2Cu2+(aq) + e−
D) Ag+(aq) + e- → Ag(s)
E) Ag(s) → Ag+(aq) + e-
Correct Answer:
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