Fuels Review

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Across
  1. 2. how thick or runny a liquid is
  2. 3. raw material, used to make a substance
  3. 5. a formula that represents the composition of any member of that homologous series
  4. 7. when a substance reacts only partially with oxygen
  5. 8. a chemical reaction where large alkane molecules are converted into smaller alkenes and alkenes
  6. 9. a substance that speeds up a chemical reaction without being used up
  7. 12. a family of compounds with similar chemical properties and a gradual trend in physical properties
  8. 14. compound containing hydrogen and carbon only
  9. 15. a compound that only contains single bonds between the atoms
  10. 16. a combustion reaction that takes place with plenty of oxygen
Down
  1. 1. rainwater more acidic than usual
  2. 4. a method of separating liquids due to different boiling points
  3. 6. unwanted substance found mixed into a useful substance
  4. 7. to start burning
  5. 10. hydrocarbon where there are on or more carbon-carbon double bonds
  6. 11. when a gas turns to liquid
  7. 13. when a liquid turns to gas