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 correctly balanced equation for this reaction?
- Cu(s) + Ag+(aq) → Cu2+(aq) + Ag(s)
- 2Cu(s) + Ag+(aq) → 2Cu2+(aq) + Ag(s)
- Cu(s) + 2Ag+(aq) → Cu2+(aq) + 2Ag(s)
- 3Cu(s) + 2Ag+(aq) → 3Cu2+(aq) + 2Ag(s)
- 2Cu(s) + 3Ag+(aq) → 2Cu2+(aq) + 3Ag(s)