Chemistry C1

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Across
  1. 2. This is made out of crude oil, natural gas and coal
  2. 4. When a fules burns without oxygen this occurs.
  3. 6. The name used for different plastics.
  4. 7. Something used to make your body smell nice.
  5. 8. This is a compound made out of carbon and hydrogen.
  6. 10. A liquid which tests for alkanes or alkenes.
  7. 11. These have double covalent bonds.
  8. 12. These have a single covalent bonds.
Down
  1. 1. When fules react with oxygen they burn and release useful heat energy.
  2. 2. A process by which components in a chemical mixture are separated according to their different boiling points. Vapors from a boiling solution are passed along a column.
  3. 3. Something that can make something dissolve.
  4. 5. This process needs high pressure and a catalyst.
  5. 9. Were large alkanes and alkenes can be broken down into smaller, more useful molecules.