Alkenes

View mindmap
  • Alkenes
    • Have a C=C double bond
      • C=C bond can open up to make a single bond
        • Allowing two carbon atoms to bond with other atoms
          • This makes them more reactive than alkanes
      • C=C double bond means aliens have two fewer hydrogens compared with alkanes containing the same number of carbon atoms.
    • Alkenes burnt with smokey flame
      • In large amounts of oxygen, alkenes combust completely to produce only water and C02
        • But there isn't enough oxygen in the air for this, so they undergo incomplete combustion
          • Now carbon and carbon monoxide are also produced
          • Smokey yellow flame and less energy than complete combustion
      • Alkene+Oxygen --> carbon + carbon monoxide+ carbon dioxide + water (energy)
    • General formula for alkenes: CnH2n
  • But there isn't enough oxygen in the air for this, so they undergo incomplete combustion
    • Now carbon and carbon monoxide are also produced
    • Smokey yellow flame and less energy than complete combustion

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Functional groups: Alkanes, alcohols, carboxylic acids and esters resources »