reactions of alkenes ( and one alcohol!)

combustion

• alkene + oxygen → carbon dioxide and water

• unburnt caron particles (incomplete combustion)

• burn in air with smoky flame

hydrogenation

• alkene + hydrogen → alkane

• nickel catalyst, 150 degrees

hydration

• alkene + steam ←→ alcohol

  • alkene comes from crude oil (non renewable)

• 300 degrees

  • lots of energy

• 70 atm

• phosphoric acid catalyst

reaction with halogens

• alkene + halogen → di halogen alkane

fermentation

• glucose → ethanol + carbon dioxide

  • glucose comes from plants

  • aqueous solution of ethanol that must be purifed

• yeast catalyst

• 30 degrees

  • doesnt need lots of energy

• anaerobic conditions