Oxidation and Reduction

• OIL RIG:

  Oxidation

  Is

  Loss of electrons

  Reduction

  Is

  Gain of electrons
• In a redox reaction, one substance loses electrons (oxidation) while another gains those electrons (reduction). Oxidation and reduction occur at the same time
• • Reduction is the removal of oxygen from a substance
  • Oxidation is the addition of oxygen to a substance
• How to find which is reduced and oxidized in a reaction:

  • Solve for the ionic equation
  • Solve the half equations to find which substances have gained or lost electrons
• An oxidizing agent causing another substance to be oxidized, so it become reduced. A reducing agent causes another substances to be reduced, it becoming oxidised