C.2 Fossil Fuels

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Across
  1. 2. _____ the octance number the greater the resistance to knocking
  2. 5. helps reduce acid rain pollution
  3. 7. measure of the total amount of CO2 emissions that is directly or indirectly caused by an activity or product
  4. 8. indicates the resistance of a motor fuel to knocking
  5. 9. largest source of energy (fossil fuel)
  6. 11. used to vaporize compounds in residue of crude oil and seperate them at low temperatures
  7. 12. crushed coal is mixed with superheated steam and a mixture of carbon monoxide and hydrogen (synthesis gas) is produced
  8. 13. breaking down large alkalanes to smaller alkalanes and alkalenes
  9. 15. heating the molecules in the presence of a catalyst to increase the branching in a molecule
  10. 16. increasing the octane number of a fuel by rearranding the atoms to form a better structure
Down
  1. 1. using a mixture of carbon monoxide and hydrogen as the feedstock to produce a variety of alkanes and water
  2. 3. reacting lower mass alkanes to form higher mass alkanes, increases the octane number
  3. 4. crude oil is seperated into fractions based on boiling point
  4. 6. hexane can be converted to benzene and hydrogen in a _____ reaction
  5. 10. the most abundant fossil fuel
  6. 14. reacting coal with hydrogen under high pressure in the presence of a catalyst