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Common examples of molecules, e.g. oxygen, hydrogen, water, glucose, carbon dioxide, methane and butane T. Show models of some simple molecules Separation of crude oil into different fractions by fractional distillation Different fractions consist of hydro-carbons of different boiling points T. Distil a small amount of crude oil and investigate the colour and flammability of the products (OB, EA) Uses of the different fractions from crude oil, e.g. LPG (liquefied petroleum gas), petrol, naphtha, kerosene, diesel and bitumen Making plastics: small hydrocarbon molecules can be joined together to produce macro-molecules, e.g. ethene (obtained by the breaking down of S. Plastic making (epoxy resin) (IF)
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