Give the two half-equations for the electrolysis of a dilute solution of copper$\left(\mathrm{II}\right)$ chloride, ${\mathrm{CuCl}}_2$.  

Draw a rough sketch of the diaphragm cell. Mark in where the oxidation and reduction reactions take place in it and write the half-equations for them. 

The electrolysis of brine is a very important process. Explain why. 

The electrolysis of brine is a very important process. Give three uses for each of the products. 

Your job is to keep a brine electrolysis plant running safely and smoothly. Try to think of three or four safety precautions you might need to take. 

If you want to purify a metal by electrolysis, will you make it the anode or the cathode? Why?