Alkenes, can be used to make polymers, Chemicals from crude oil can be used, as fuels or to make plastics, medicines, dyes, explosives' and margarine, Polymers, are made up of lots of small molecules joined together called monomers, Small molecules that combine with similar molecules to make polymers are known as, monomers, Polythene or Poly(ethene) is formed by an, addition reaction, A material that is made up of lots of polymers chains tangled together is, plastic, Ethene is used to make the polymer, polythene.

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