State that electrolysis is the chemical effect of electricity on ionic compounds, causing them to break up into simpler substances, usually elements.
Use the terms electrode, electrolyte, anode and cathode.
An electrolyte is any substance containing free ions that make the substance electrically conductive.
Describe electrolysis in terms of the ions present and the reactions at the electrodes.
Describe the electrode products, using inert electrodes, in the electrolysis of molten lead(II) bromide
Demo
Duration 16:40
Tutorial
Duration 11:40
Describe the electrode products, using inert electrodes, in the electrolysis of aqueous copper chloride
Demo
Duration 07:05
Describe the electrode products, using inert electrodes, in the electrolysis of dilute sulfuric acid
Demo
Duration 11:55
State and use the general principle that metals or hydrogen are formed at the negative electrode (cathode), and that non-metals (other than hydrogen) are formed at the positive electrode (anode)
Relate the products of electrolysis to the electrolyte and electrodes used, exemplified by the specific examples in the Core together with aqueous copper(II) sulfate using carbon electrodes and using copper electrodes (as used in the refining of copper)
Demo
Electrolysis of copper (II) sulphate solution using carbon electrodes Duration 00:24
Demo
Solution Electrolysis: Copper (II) Sulfate using copper electrodes. Duration 05:39
Describe the electroplating of metals, using laboratory apparatus
Demo
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Demo
Duration 03:42
Video
Duration 02:54
Describe, in outline, the chemistry of the manufacture of aluminium from pure aluminium oxide in molten cryolite
Video
Duration 04:54
Describe, in outline, the chemistry of the manufacture of chlorine, hydrogen and sodium hydroxide from concentrated aqueous sodium chloride.