BTEC Applied Science - Unit 5 Chemistry - Ease of Electrolysis

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10 Terms

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Electrolysis

The decomposition of a compound using electricity

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Molten

when something is in its liquid state

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Cation

A positively charged ion

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Anion

A negatively charged ion

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Aqueous

When a substance is dissolved in water

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PANCake

  • Positive Anode

  • Negative Cathode

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Ionic Substances

  • Giant ionic lattice

  • Many strogn electro static attractions between oppositely charged ions

  • Don’t conduct when solid because ions are fixed and can’t move

  • Can conduct when molten or dissolved in water because ions can move

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What is electrolysis?

  • Electrolysis is a way of separating/decomposing substances

  • It works well for decomposing ionic compounds

  • The ions are attracted to the cathode and anode where they are DISCHARGED

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