Unit 4 · Chemical Reactions

Chapter 4.5

Redox Reactions and Balancing with Half-Reactions

Iron rusts, batteries die, and a match burns for the same reason: electrons changed owners. Split any such reaction into the half that gives and the half that takes, and balancing becomes bookkeeping.

in preparation · lesson 19 of 45

By the end

  1. 01Write oxidation and reduction half-reactions for a redox process
  2. 02Balance a redox equation from half-reactions, including in acidic solution
  3. 03Check a balanced redox equation for atom and charge conservation

In unit 4

  1. 4.1Writing What Happened: Evidence, Balanced Equations, and Net Ionic Equations
  2. 4.2Physical Change, Chemical Change, and the Three Kinds of Reaction
  3. 4.3Stoichiometry and Titration: How Much Reacts
  4. 4.4Brønsted–Lowry Acids and Bases: Proton Transfer
  5. 4.5Redox Reactions and Balancing with Half-Reactions
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