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Chemistry notebook Cambridge IGCSE 0620

Topic 4 of 12 · 3 modules planned

Electrochemistry

Using electricity to split compounds, and using reactions to make electricity.

Modules

  1. Module 1 · syllabus 4.1

    Electrolysis

    Where do the products of electrolysis appear?

    This module is planned. It will have readings, an experiment, practice with self-checks and a final check.

Syllabus statements for this topic · for teachers · 13 statements

Core for every pupil · Supplement also for Extended entry. Paraphrased from the Cambridge IGCSE Chemistry 0620 syllabus (2026–2028); check the official syllabus for exact wording.

4.1 Electrolysis

  • 4.1.1Electrolysis of molten/aqueous ionic materialC
  • 4.1.2Electrolytic anode, cathode and electrolyteC
  • 4.1.3Electrode observations: molten PbBr2, concentrated brine, dilute H2SO4C
  • 4.1.4Cathode/anode product familiesC
  • 4.1.5Molten binary-electrolyte predictionsC
  • 4.1.6Purpose of electroplatingC
  • 4.1.7Electroplating methodC
  • 4.1.8Charge movement through circuit and electrolyteS
  • 4.1.9CuSO4 electrolysis: inert versus copper electrodesS
  • 4.1.10Aqueous halides: dilute/concentrated product choiceS
  • 4.1.11Electrode half-equations and redoxS

4.2 Hydrogen–oxygen fuel cells

  • 4.2.1Hydrogen/oxygen fuel-cell inputs and outputC
  • 4.2.2Fuel-cell versus petrol vehicle trade-offsS