2. For each of the following voltaic cells: A. write the half reactions, designating which is oxidation and which is reduction B. write the total cell reaction and C. calculate the voltage of the cell (Eº) made from standard electrodes. a) Sn²+ / Sn // Br₂ / Br- b) Al / A³ // Fe²+ / Fe c) Col Co?* || Ag" I Ag

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