b) The voltaic cell consists of cadmium, Cd and chromium ion, Cr electrodes. Their standard reduction potentials for cadmium ion, Cd2+ and chromium ion, Cr3+ at 25C can be referred to Appendix 2 i) Write the half- reaction occurance at anode and cathode ii) Write the complete cell notation of the cell reaction (2 marks) (2 marks) iii) Show the overall cell reaction (2 marks) iv) Calculate the standard cell potential of the voltaic cell v) Indicate the spontaneity of the overall reaction. (2 marks) (1 mark)