Chapter 17, Problem 13QAP

Draw a diagram for a salt bridge cell for each of the following reactions. Label the anode and cathode, and indicate the direction of current flow throughout the circuit.
(a) $\text{Zn}\left(s\right)+{\text{Cd}}^{2+}\left(aq\right)\to {\text{Zn}}^{2+}\left(aq\right)+\text{Cd}\left(s\right)$
(b) $2{\text{AuCl}}_4{}^{-}\left(aq\right)+3\text{Cu}\left(s\right)\to 2\text{Au}\left(s\right)+8{\text{Cl}}^{-}\left(aq\right)+3{\text{Cu}}^{2+}\left(aq\right)$
(c) $\text{Fe}\left(s\right)+\text{Cu}{\left(\text{OH}\right)}_2\left(s\right)\to \text{Cu}\left(s\right)+\text{Fe}{\left(\text{OH}\right)}_2\left(s\right)$