Alkene

Alkene

1. Excess O2

   • CO2(g) + H2O (l)
   • Complete Combustion

2. Limited O2

   • CO(g) + H2O(l)
   • Incomplete Combustion

3. H2(g) / Nickel Catalyst

   • The double bond is broken.
     • Eg: CH3CH=CH2(l) + H2(g) ------> CH3CH2CH3(g)
   • Hydrogenation

4. Eg: CH3CH=CH2

5. Halogen

   • Naming goes with "ation" at the end of halogen.
     • Eg: Bromination (For the example above)
   • Adds 2 halogen atoms removing the C=C bond.
     • Eg: CH3CH=CH2 + Br2 -------> CH3CHBrCH2Br

6. H20(l) and CONC: {H3PO4} with HEAT

   • Hydration
   • Removes the double bond and adds an OH instead
     • Eg: CH3CH=CH2 + H20(l) ------> CH3CH(OH)CH3

7. HBr(l)

   • Eg: CH3CH=CH2 + HBr -------> CH3CHBrCH3
     • Note that HBr breaks down to H+ and Br- . The H+ always goes to the atom with higher H atoms of the double bond pair. EG: CH=CH2 The CH2 has more H atoms :)
   • Adds a Br and H atom by removing the C=C bond