Alkanes

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3.5 Describe the substitution reaction of methane with bromine to form bromoethane in the prescence of UV light

In UV light bromine and methane will form bromomethane:

CH4  +  Br2(http://www.chemguide.co.uk/mechanisms/freerad/arrow.GIF)CH3Br  +  HBr
  What has happened in this reaction is a bromine has taken the place of a hydrogen (substitution.) 3.4 Recall the products of the complete and incomplete combustion of alkanes  Complete combustion ---> Produces Carbon Dioxide + Water  Inomplete combustion ---> Produces Carbon Monoxide + Water  3.3 Draw displayed

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