A galvanic cell consists of two half-cells connected by a salt bridge. One half-cell contains an silver electrode in 1.0 mol/L silver nitrate solution. The other half-cell contains a zinc electrode in 1.0 mol/L zinc nitrate solution. The salt bridge contains sodium sulfate. a. Make a diagram of the cell. Label the anode, the cathode, salt bridge, and the charge of each electrode. Indicate the direction of electron and ion movement. b. Write the half-reactions that occur at the anode and the cathode.