Chemistry unit 5 Electrolysis
- Created by: Bree-Ffionn
- Created on: 03-09-19 19:07
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- Electrolysis breaks down compounds into simpler substances.
- It is used in industrial processes.
- Ionic substances are decomposed by an electrical charge being passed through them during electrolysis.
- The ions must be free to move for this to work so the compound must be molten.
- When sodium chloride is dissolved in water, hydrogen and hydroxide ions are present as well as the sodium and choride ions.
- The ion which is selected to discharge at an electrode depends on a number of factors.
- The position of the ion in the electrochemical series affects its ease of discharge at an electrode.
- When metals react, they lose electrons to become positive ions.
- If a metal is placed…
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