C1 PART 1 0.0 / 5 ? ScienceChemistryGCSEOCR Created by: kieranbell2001Created on: 17-05-16 12:57 What is crude oil Cude oil is a mixture of many types of oil, which are all 'hydrocarbons' 1 of 8 What is a hydrocarbon? a hydrocarbon is molecules containing carbon and hydrogen only 2 of 8 Why can crude oil be seperated crude oil can be seperated because the hydrocarbons in different fractions have differently sized molecules. 3 of 8 Name a problem with transporting oil oil slicks can damage birds' feathers ands can cause thier deaths 4 of 8 What is cracking cracking is a process which turns large alkane molecules into smaller alkene and alkane molecules 5 of 8 Why is an alkene molecule useful? because an alkene molecule has a double bond which makes it useful for making polymers 6 of 8 Give the word equation for combustion Methane + oxygen --> carbon dioxide + water 7 of 8 When does complete combustion occur? Complete combustion occurs when a fual burns in plenty of oxygen 8 of 8
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