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3 Cards in this Set
- Front
- Back
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Electrolysis |
An electric current is passed through an electrolyte. The ions move towards electrodes where they react. Positive ions move to cathode and gain electrons Negation ions move to anode and lose electrons |
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Electrolysis of aqueous solutions |
Cathode- if the metal is higher than hydrogen on reactivity series, hydrogen gas is produced Anode- OH- and halides If halides are present they are formed |
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Electrodes made from carbon |
Needs replacing regularly as oxygen will react to make carbon dioxide |
