Electrolysis

• Negative anions are attracted to the positive anode.
• Positive cations are attracted to the negative cathode.
• An electrolyte is a molten or aqueous ionic compound that can conduct electricity.
• Oxidation occurs at the anode as negative ions lose electrons.
• Reduction occurs at the cathode as positive ions gain electrons.
• Electrolysis is when electricity from a direct current supply decomposes electrolytes.
• Products of Electrolysis

  • Cathode: If metal is more reactive than hydrogen, hydrogen is formed. If not the metal is formed.
  • Anode: If not in group 7, oxygen and water is formed. If it is, the element forms.