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Card 6
Front
How can we make insoluble salts?
Back
Card 7
Front
How can some pollutants i.e. metals ions be removed from water?
Back
Card 8
Front
What is electrolysis?
Back
Card 9
Front
What is reduction?
Back
Card 10
Front
What is oxidation?
Back
Card 11
Front
How can we represent half equations for changes at electrodes i.e. lead bromide?
Back
Card 12
Front
Water contains O and H ions. What happens when solutions of ions in water are electrolysed?
Back
Card 13
Front
Why must aluminium be extracted from its core by electrolysis?
Back
Card 14
Front
What is the overall reaction in an electrolysis cell (extraction of aluminium)?
Back
Card 15
Front
Why do the positive electrodes used in the cell (for the extraction of aluminium) need to be replaced regularly?
Back
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