AP Chemistry· difficulty 3/5
During silver plating, what occurs at the cathode (the spoon)?
Ag⁺ + e⁻ → Ag(s) (reduction)
Ag(s) → Ag⁺ + e⁻ (oxidation)
NO₃⁻ is reduced
2H₂O → O₂ + 4H⁺ + 4e⁻
Explanation
The spoon is the cathode in this plating cell; Ag⁺ ions in solution gain electrons there to deposit metallic Ag.
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