Chemistry Unit 1 0.0 / 5 ? ChemistryMaking Crude oil usefulUsing carbon fuelsMaking polymersGCSEOCR Created by: hollyjordanCreated on: 22-03-16 10:43 342165 Across 1. Crude oil is a mixture of many (12) 5. fossil fuels are ...... resources (6) 6. What is at the bottom of the fractionating coloumn (7) Down 2. ....... is used to text for an alkene (7) 3. Burning hydrocarbons puts water and ............. into the air (6, 7) 4. Alkenes have a ...... covalent bonds (6)
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