(CH2CH2)n Polyethene Polyethylene 1 Reaction utilises: Polyethylene 2 Reactions form: Polyethylene C 2000%, H 4002%, polymer with estimated composition  Real, long lived, electronically neutral reagent chemical. Melting point = 200 °C Polymer. Composed of polymer chains average length 1000 methylenes. Polyethylene is defined with respect to the entities below: The entities below are defined with respect to: Polyethylene Alkane (generic) Alkyl, -CH2- (generic) Alkyl, -CH2CH2- (generic) Inert (generic) Polymer (AS/A2 generic) Polymer (generic) chemical compound molecule metal molecular science reaction mechanism ionic material acid base geometry reactivity synthesis science knowledge chemistry Lewis