Please help me with my revision question, explain step by step, thanks

a) Draw a diagram to show how the apparatus can be assemble for the reaction of Cl2(g)+H2(g)2Cl(g)+2H+(aq). Indicate the direction of electron flow on your diagram. b) Write equations to show the reactions occurring at the electrodes. State what type of reactions these are and whether the electrode are acting as positive or negative terminals. c) Write the cell diagram for the reaction