4) a) State 2 differences between a Galvanic and Electrolytic Cell (2 marks) b) For the following (1)/(2) reactions of a Galvanic Cell (4 marks) Br2(l) + 2e- -> 2Br-1(aq) 2I-(aq) -> I2(g) + 2e- i) Identify which (1)/(2) is the oxidation half reaction and which (1)/(2) reaction is the reduction half reaction (1 mark) ii) Identify which reaction occurs at the anode and which occurs at the cathode. (1 mark) iii) Write the shorthand notation of the cell. (2 marks)