Electrolysis of Aqueous Solutions 

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Practical work based on electrolysis offers opportunities for learners to investigate chemical reactions and apply their knowledge of the reactivity series.
Investigate electrolysis of aqueous solutions with this simple experiment using copper(II) sulfate as the example. The supporting resources introduce electrolysis of other aqueous solutions, including sodium chloride and hydrochloric acid.
Animations show movement of ions and electrons to help learners visualise what is happening at a particle level and help them link theory to their practical work.
Chapter titles
00:09 Introduction
00:56 Experiment set up
02:54 The negative electrode
03:48 The positive electrode
04:44 Oxidation and reduction