• Electrolysis Breaks down compounds into simpler structures (used in industrial processes)

  • Ionic substances are decomposed by an electrical charge being passed through them during electrolysis. 

  • Ions must be free to move for this to work so the compound must be molten. 

  • Sodium chloride is dissolved in water, hydrogen and hydroxide ions are present as well as the sodium and chloride ions.

  • Ion which is selected to discharge at an electrode depends on a number of factors. 

  • Position of the ion in the electrochemical series affects its ease of discharge at an electrode. 

  • Metal react, they lose electrons


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