Electrolysis

• Electrolysis is the break-up of a chemical compound using an electric current.
• Electrolytes are ionic so the charge moves though the solution by the ions moving
• Positive ions move towards the negative cathode
• Negative ions move towards the positive anode
• Ions reach the electrodes and are discharged; they turn into atoms or molecules.#
• The amount produces at each electrode increases with current and time

The Electrolysis of Copper:

In the purification of copper the electrolyte used is a solution of copper (II) sulphate and this is purified using copper electrodes.

The cathode used (The negative electrode) is a sheet…