A voltaic cell similar to that shown in Figure 20.5 is constructed. One electrode half-cell consists of a silver strip placed in a solution of AgNO3, and the other has an iron strip placed in a solution of FeCl2. The overall cell reaction is
Fe(s) + 2 Ag + (aq) → Fe2+ (aq) + 2 Ag(s)
(a) What is being oxidized, and what is being reduced?
(b) Write the half-reactions that occur in the two half-cells.
(c) Which electrode is the anode, and which is the cathode?
(d) Indicate the signs of the electrodes.
(e) Do electrons flow from the silver electrode to the iron electrode or from the iron to the silver?
(f) In which directions do the cations and anions migrate through the solution?