Addition Polymerisation As level chemistry, please help!?

[Topher]

please help our teacher has decided that we havent got enough time to go over the addition polymerisation so gave us the specification points for us to learn it ourselves. I'm really stuck on this please help:


outline the use of alkenes in the industrial production of organic compounds, typified by:
the manufacture of margarine by catalytic hydrogenation of unsaturated vegetable oils using hydrogen and a nickel catalyst;
the formation of a range of polymers using unsaturated monomer units based on the ethene molecule, for example, CH2CHCl, CF2CF2