Single science paper 2 chem 0.0 / 5 ? ChemistryProperties of hydrocarbonsPolymersGCSEEdexcel Created by: SumedhaRCreated on: 17-10-19 19:04 What are the first 4 alkanes? Methane, Ethane, Propane, Butane 1 of 7 Are alkanes saturated or unsaturated? They are saturated (No C=C double bond) 2 of 7 Explain how bromine water is used to distinguish between alkanes and alkenes Alkenes -> turn bromine water from orange to colourless Alkanes-> no change 3 of 7 What is produced during the complete combustion of alkanes/alkenes? Carbon dioxide + water (Carbon and hydrogen are oxidised) 4 of 7 What is a polymer? A polymer is a substance of high average relative molecular mass made up of small repeating units 5 of 7 What is the process used to make polymers? Addition polymerisation 6 of 7 Can saturated hydrocarbons become polymers? No only unsaturated hydrocarbons can - you need the C=C double bond 7 of 7
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