Redox Reactions

30 lessons, pages 1831–1860.

  1. Electron Transfer and Oxidation Numbers — Two complementary ways to identify redox change
  2. Oxidation Number Rules — Assigning formal oxidation states in elements and compounds
  3. Oxidation Numbers in Ions — Charge sums for monatomic and polyatomic ions
  4. Exceptions in Oxidation-State Assignment — Peroxides, hydrides and fluorine-related cases
  5. Finding Redox Change in Equations — Tracking oxidation-state increases and decreases
  6. Oxidising and Reducing Agents — Identifying the species that accepts or donates electrons
  7. Oxidation-State Limits and Covalent Bonds — Formal electron bookkeeping versus actual electron density
  8. Displacement as a Redox Process — Metal and halogen displacement through electron transfer
  9. Combination and Decomposition Redox — Recognising redox within broader reaction classes
  10. Disproportionation Reactions — One element simultaneously oxidised and reduced
  11. Comproportionation Reactions — Two oxidation states forming an intermediate state
  12. Half-Reaction Method: Foundations — Separating oxidation and reduction while conserving charge
  13. Balancing Redox in Acidic Solution — Using H2O, H+ and electrons in ion-electron balancing
  14. Balancing Redox in Basic Solution — Converting acid-form balances using OH- and water
  15. Combining Half-Reactions — Equalising transferred electrons and cancelling species
  16. Oxidation-Number Balancing Method — Matching total oxidation-state increase and decrease
  17. Checking Balanced Redox Equations — Atom, charge and electron-balance audits
  18. Redox with Permanganate in Acid — MnO4- reduction to Mn2+ and common electron ratios
  19. Redox with Dichromate in Acid — Cr2O7 2- reduction to Cr3+ and stoichiometric balance
  20. Hydrogen Peroxide in Redox — Oxidising and reducing roles of peroxide under stated conditions
  21. Redox Stoichiometry from Electron Counts — Converting oxidant and reductant amounts through electrons
  22. Equivalent Concept in Redox — Electron equivalents and reaction-dependent n-factor
  23. Redox Titration Basics — Endpoint, stoichiometry and sample amount in redox analysis
  24. Permanganate Titration Calculations — Using acidic permanganate ratios with a reductant
  25. Iodine and Thiosulfate Reactions — Electron balance in a common iodometric pair
  26. Redox in Corrosion — Coupled metal oxidation and oxygen reduction
  27. Redox in Cells and Electrolysis — Anode oxidation and cathode reduction across systems
  28. Redox Data and Product Ambiguity — Using medium and stated products before balancing
  29. Multi-Step Redox Problem Strategy — Combining oxidation numbers, half-reactions and mole ratios
  30. Redox Reactions: Integrated Review — Connecting agents, oxidation states, balancing and titration