alkenes

• give general formula of alkenes

  CnH2n
• give type of compound of alkenes

  unsaturated - double carbon bond
• give first alkenes

  1. ethene
  2. propene
  3. butene
  4. pentene
• give formula of ethene

  C2H4
• give formula of propene

  C3H6
• give formula of propene

  C3H6
• give formula of butene

  C4H8
• give formula of pentene

  C5H10
• describe reactions of alkenes

  addition reactions where double carbon bond open up to bond to new atom
• give reactions of alkenes

  • hydrogen
  • water
  • halogens
• describe reaction of alkene and hydrogen

  require catalyst
• describe reaction of alkene and water

  require catalyst to form alcohol
• describe test for alkenes

  bromine water to turn from orange to colourless