define electrolysis, electrorefining and overpotential
calculate the yield of a chemical product from current and electrolysis time
predict which products are thermodynamically favoured to form in an aqueous electrolysis reaction, and relate this to the chlor-alkali process
explain how aluminium is won from its ore
describe the process of corrosion of iron, factors that affect corrosion, and various methods of corrosion prevention, including cathodic protection and anodic inhibition
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