C1: Making oil useful 3.5 / 5 based on 2 ratings ? ChemistryCrude oil, cracking and hydrocarbonsGCSEOCR Created by: 11salmaaCreated on: 21-06-15 16:05 1079134658 Across 1. ''_______'' are finite resources because they are no longer being made, or being made extremely slowly. (6, 5) 4. Oil that doesn't boil sinks as a thick liquid to the bottom. This is ''__________''. ''__________'' has a very high boiling point. It exists at the bottom of the column. (7) 5. Other fractions, containing mixtures of hydrocarbons with similar boiling points, boil and their gases ''_____'' up the column. (4) 6. Crude oil can be separated because the hydrocarbon in different fractions have differently ''_______'' molecules. (5) 8. The column is ''_______'' at the top. (6) Down 1. Oil-producing nations can set high prices and cause problems for the ''_________'' supply of non-oil producing nations. (6) 3. The uk is dependant on oil from politically ''__________'' countries. (8) 7. An alkene molecule has a double bond, which make it useful to make ''___________''. (8) 9. Crude oil is a mixture of many types of oil, which are all ''___________''. A ''__________'' is made up of hydrogen and carbon molecules only. (11) 10. Clean-up operations use ''________'' that can damage wildlife. (10)
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