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alkenes - Coggle Diagram

- - - - alkene + oxygen = carbon dioxide + water vapour
  - - - alkenes + hydrogen = alkane
    - - alkane + bromine = haloalkanes
        
        serves as a chemical test for unsaturation (used to distinguish between alkane and alkene)
        
        liquid alkenes - add aq bromine to alkene and shake. the reddish brown colour of bromine will become colourless in the presence of alkene
    - - alkanes + steam = alchols
- - - - done by passing long-chain alkanes over solid aluminum oxide and silicon dioxide catalyst at a high tempt
        
        this converts larger hydrocarbons, which are less flammable (lesser in demand) into smaller hydrocarbons which are more flammable (greater in demand) used for fuel, a reducing agent, in the haber process