Single science paper 2 chem 4.0 / 5 based on 1 rating ? ChemistryPolymersGCSEEdexcel Created by: SumedhaRCreated on: 17-10-19 19:57 What are the properties of poly(ethene) Flexible, Cheap, Electrical insulator 1 of 17 Uses of Poly(ethene) Plastic bags and bottles, coating on electrical wires 2 of 17 What are the properties of poly(propene) Flexible, Strong 3 of 17 Uses of Poly(propene) Buckets and crates 4 of 17 What are the properties of poly(chloroethene) Tough, Cheap, Longlasting 5 of 17 Uses of Poly(chloroethene) Window frames 6 of 17 What are the properties of PTFE? Tough, Non-stick 7 of 17 Uses of PTFE Non-stick coating on pans 8 of 17 What is condensation polymerisation? a small molecule is formed as a by-product each time a bond is formed between two monomers 9 of 17 What do you get when you react a carboxylic acid with an alcohol? An Ester! 10 of 17 How is an ester formed? Gets the OH from the carboxylic acid and the H from the alcohol. 11 of 17 How is a molecule of water formed while making an ester? The OH and H groups combine to make H2O 12 of 17 Give 2 advantages of recycling polymers Two out of: Better for the environment, Saves finite resources (crude oil), More ecoomically viable - costs more to make more 13 of 17 Give 1 disadvantage of recycling polymers Difficult and expensive to first seperate the differnt polymers 14 of 17 What are the monomers that make up DNA? 4 different types of monomes called nucleotides 15 of 17 What are the monomers that make up starch? Simple sugars 16 of 17 What are the monomers that make up proteins? Amino acids 17 of 17
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