Redox Reactions

• What is reduction in terms of?

  1. electrons
  2. oxygen
  3. hydrogen?

  gain of electrons

  removal of oxygen

  addition of hydrogen
• What is oxidiation in terms of

  1. electrons
  2. oxygen
  3. hydrogen?

  loss of electrons

  addition of oxygen

  removal of hydrogen
• What oxidation state to uncombined elements and diatomic molecules have?

  0
• What is the oxidation state of hydrogen?

  +1
• What is the exception of the oxidation state of hydrogen?

  -1 in metal hydrides
• What is the oxidation state of a group 1 element?

  +1
• What is the oxidation state of a group 2 element?

  +2
• What is the oxidation state of a group 3 element?

  +3
• What is the oxidation state of oxygen?

  -2
• Oxidation state of oxygen in OF2? ( Exception)

  +2
• Oxidation state of oxygen in hydrogen peroxide? ( Exception)

  -1
• What is the oxidation state of fluorine?

  -1
• What is the oxidation state of chlorine?

  -1
• When will chlorine have a positive oxidation state value?

  when in compounds with fluorine or oxygen
• What are the 3 things that can be added when writing half equations?

  electrons

  hydrogen ions

  water
• What ion can be added in alkaline conditions aside from water, hydrogen ions and electrons?

  hydroxide