CHAPTER 7: Redox Reactions and Electrolysis

• Oxidation and Reduction
• Electrolysis

Learning outcomes:

• • calculate oxidation numbers of elements in compounds and ions
  • describe and explain redox processes in terms of electron transfer and/or changes in oxidation number (oxidation state).
  • use changes in oxidation numbers to help balance chemical equations
• explain, including the electrode reactions, the industrial processes of:
• the electrolysis of brine, using a diaphragm cell
• the extraction of aluminium from molten aluminium oxide/cryolite.
• the electrolytic purification of copper