3.1 - Oxidation & Reduction

• oxidation


  gain of oxygen

  loss of hydrogen

  Loss of electrons

  increase in oxidation number
• Oxidising agent


  a substance which oxidises another substance and is itself reduced
• examples of oxidation


  burning

  rusting
• reduction


  loss of Oxygen

  gain of hydrogen

  gain of electrons

  decrease in oxidation number
• reducing agents


  substance that reduces something else and is itself Oxidised
• example of reduction


  extraction of metals