Hydrocarbons

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Across
  1. 4. Where alkanes are produced from (5,3)
  2. 7. A fuel that can be used over and over again (9)
  3. 9. How easy it is for an alkene to set on fire (12)
  4. 10. The smallest alkane with the formula CH4 (7)
  5. 11. The science name for burning (10)
  6. 13. The temperature when a liquid turns into a gas (7,5)
  7. 14. A hydrocarbon with the general formula Cn(Hn+2) (6)
Down
  1. 1. Coal, oil and gas are these type of fuel (6,4)
  2. 2. How easy it is for a substance to turn into a gas (10)
  3. 3. Hydrocarbons are made of hydrogen and which other element (6)
  4. 4. How alkanes are split into smaller chains (8)
  5. 5. What is transferred during combustion (6)
  6. 6. The alkane with 6 carbon atoms (6)
  7. 8. How sticky a hydrocarbon is (9)
  8. 12. An alkene used for barbecues and has 3 carbon atoms (7)