ElectrolysisDefine electrolysis as the decomposition of an ionic compound, when molten or in aqueous solution, by the passage of an electric currentIdentify in simple electrolytic cells:(a) the anode as the positive electrode(b) the cathode as the negative electrode(c) the electrolyte as the molten or aqueous substance that undergoes electrolysisDescribe the transfer of charge during electrolysis to include:(a) the movement of electrons in the external circuit(b) the loss or gain of electrons at the electrodes(c) the movement of ions in the electrolyteIdentify the products formed at the electrodes and describe the observations made during the electrolysis of:(a) molten lead(II) bromide(b) concentrated aqueous sodium chloride(c) dilute sulfuric acidusing inert electrodes made of platinum or carbon/graphiteState that metals or hydrogen are formed at the cathode and that non-metals (other than hydrogen) are formed at the anodePredict the identity of the products at each electrode for the electrolysis of a binary compound in the molten stateIdentify the products formed at the electrodes and describe the observations made during the electrolysis of aqueous copper(II) sulfate using inert carbon/graphite electrodes and when using copper electrodesPredict the identity of the products at each electrode for the electrolysis of a halide compound in dilute or concentrated aqueous solutionConstruct ionic half-equations for reactions at the anode (to show oxidation) and at the cathode (to show reduction)State that metal objects are electroplated to improve their appearance and resistance to corrosionDescribe how metals are electroplatedHydrogen–oxygen fuel cellsState that a hydrogen–oxygen fuel cell uses hydrogen and oxygen to produce electricity with water as the only chemical productDescribe the advantages and disadvantages of using hydrogen–oxygen fuel cells in comparison with gasoline/petrol engines in vehicles