1iElectrolysis

Syllabus objectives

• 1.55understand why covalent compounds do not conduct electricitySeparate Chemistry only
• 1.56understand why ionic compounds conduct electricity only when molten or in aqueous solutionSeparate Chemistry only
• 1.57know that anion and cation are terms used to refer to negative and positive ions respectivelySeparate Chemistry only
• 1.58describe experiments to investigate electrolysis, using inert electrodes, of molten compounds (including lead(II) bromide) and aqueous solutions (including sodium chloride, dilute sulfuric acid and copper(II) sulfate) and to predict the productsSeparate Chemistry only
• 1.59write ionic half-equations representing the reactions at the electrodes during electrolysis and understand why these reactions are classified as oxidation or reductionSeparate Chemistry only
• 1.60practical: investigate the electrolysis of aqueous solutionsSeparate Chemistry onlyPractical