Chemistry C2 GCSE AQA - UNIT 6

Follow up to units 1, 2, 3, 4 and 5

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  • Passing an ELECTRIC CURRENT through ionic substances that are MOLTEN or in a SOLUTION breaks them down.
  • This process is called ELECTROLYSIS
  • When an ionic substance is melted or dissolved in water, the ions are free to move about in the liquid
  • During electrolysis, POSITIVELY charged ions move to the NEGATIVELY charged electrode (CATHODE) and NEGATIVELY charged ions move to the POSITIVE electrode (ANODE)
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Electrolysis - Example 1


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At the Cathode (Negative Electrode)


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At the Anode (Positive Electrode)


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Purifying Copper


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good thing you can SPELL hahaha oxidized m'dear

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