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Across
  1. 5. (The type of hydrocarbon collected at the bottom of the column, has a very high melting point.
  2. 7. Distillation A method used to separate crude oil into different components based on boiling points.
  3. 8. The process of turning a substance from liquid to vapor.
  4. 9. The type of gases that do not condense and pass out of the top of the column.
Down
  1. 1. The fractionating column cools down as you move this direction.
  2. 2. Hydrocarbons with similar numbers of carbon atoms are grouped into these.
  3. 3. The term for the different layers of hydrocarbons collected at various heights in the column.
  4. 4. This occurs as the vapors move up the fractionating column and cool down.
  5. 6. The part of the fractionating column where the gases that do not condense are collected.