2.  Learners must be able to define galvanic cell in terms of electrode reaction. e.g. salt bridge.(N.B. anode and cathode)  Learners must be able to do the conversion of chemical energy to electrical energy. e.g. copper zinc cell.  Learners must define electrolytic cell in terms of electrode reaction that are sustained by supply of electrical energy into chemical energy. e.g. porous membrane. (anode, cathode).  Learners must be able to define oxidation reduction in terms of electron transfer. e.g. copper zinc cell.

3.  Anode Zn → Zn 2+ + 2e - oxidation  Cathode Cu 2+ + 2e - → Cu reduction  Relative of current and potential to rate and equilibrium  Learners must be able to explain the relationship between current in an electrochemical cell and the rate of reaction.

4.  An experiment to perform using different electrodes. i.e. copper, zinc, magnesium and carbon and necessary solutions.  State the pd cell related to spontaneous reaction at equilibrium.  Use the qualitative relationship between v and the concentration of product and the reactants ions for the spontaneous reaction namely: v decreases while concentration of product ions increases, concentration of reactant ions decreases until equilibrium as reached at which v=o.

5.  Learners must understand the description of the movement of ions through solutions.  Electron flow in the external circuit of the cell and their relation to the half reaction at the electrode.  Function of the salt – bridge.