20. Electrochemistry
Cell Notation
Multiple Choice
Multiple ChoiceWrite the half reactions as well as the overall net ionic equation for the following line notation:
Fe (s) | Fe2+ (aq) || Mg2+ (aq) | Mg (s)
A
Anode: Fe (s) → Fe2+ (aq) + 2e-
Cathode: Mg2+ (aq) + 2e- → Mg (s)
Overall: Fe (s) + Mg2+ (aq) → Fe2+ (aq) + Mg (s)
B
Anode: Fe (s) → Fe2+ (aq) + 2e-
Cathode: Mg2+ (aq) + 2e- → Mg (s)
Overall: Fe2+ (aq) + Mg (s) → Fe (s) + Mg2+ (aq)
C
Anode: Fe (s) → Fe2+ (aq) + 2e-
Cathode: Mg (s) → Mg2+ (aq) + 2e-
Overall: Fe (s) + Mg2+ (aq) → Fe2+ (aq) + Mg (s)
D
Anode: Fe2+ (aq) + 2e- → Fe (s)
Cathode: Mg2+ (aq) + 2e- → Mg (s)
Overall: Fe (s) + Mg2+ (aq) → Fe2+ (aq) + Mg (s)
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