Electrolysis

Electrolysis is a process whereby an ionic substance is decomposed into a simpler substance when an electric current is passed through it.

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Uses of electrolysis:

• Used to purify metals 

• Used in a process called electroplating, coating one metal in another metal

• Used in the production of oxygen, sodium etc

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During electrolysis positive ions are attracted to the negative electrode (cathode) and negative ions are attracted to the positive electrode (anode). 

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Electrolytes

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For a substance to be an electrolyte, it must be bale to conduct electricity