A voltaic cell is constructed using the reaction

(a) Write equations for the oxidation and reduction half-reactions.
(b) Which half-reaction occurs in the anode compartment, and which occurs in the cathode compartment?
(c) Complete the following sentences: Electrons in the external circuit flow from the _______ electrode to the _______ electrode. Negative ions move in the salt bridge from the _______ half-cell to the _______ half-cell. The half-reaction at the anode is _______, and that at the cathode is _______ .

Transcribed Image Text:

Mg(s) + 2 H+ (aq) → Mg2+ (aq) + H₂(g)