Chemistry - Polymers and ethanol from oil Polymer and ethanol from oil 3.5 / 5 based on 2 ratings ? ChemistryPolymersGCSEAll boards Created by: AliceCreated on: 24-05-11 17:19 What does cracking do? What happens to fractions containing large molecules? What does it do? What is the difference between alkanes and alkenes? What is the general formula for alkenes? What is the formula for ethene Name two things alkenes can be used to make? What is ethanol? What is ethanol usually used for? 1 of 4 It breaks down the large hydrocarbon molecules into smaller molecules They are passed over a hot catalyst. This breaks down the chemical bonds in the molecule and forms a smaller hydrocarbon molecule Alkanes are made up of single bonds and are saturated. Alkenes are made up of double bond and are unsaturated which makes them more reactive. CnH2n C2H4 Plastics (polymers), Alcohol (ethanol) Ethanol is a type of alcohol found in alcoholic drinks such as wine and beer Fuels 2 of 4 How can ethanol be made? What is another way ethanol can be made? What can alkene's be used to make? What are the small molecules called? Name three things that modern polymers are used for: What is good about polymers? What is bad about polymers? However many polymers can be... 3 of 4 It can be made by reacting ethene with steam Fermentation Polymers Monomers Waterproof coatings, fillings for teeth, dressing for cuts They are un-reactive They are not biodegradable so it's hard to dispose of them Recycled 4 of 4
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