Chemistry

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Across
  1. 2. Pyrolysis is ______ process
  2. 5. Product of coal pyrolysis, used to produce synthesis gas
  3. 7. Source of light(coal gas for example)
  4. 9. Coal gas is a mixture of H2, CH4, CO and
  5. 10. Compounds that consist only of the elements carbon and hydrogen and contain at least one carbon-carbon double or triple bond
  6. 11. Group of substances with similar boiling points
  7. 12. By-product of pyrolysis, thick, black liquid
  8. 13. Surname of polish pharmacist who in 1856 built the world`s first modern oil refinery
Down
  1. 1. Thermal decomposition of matrials in the absence of oxygen.
  2. 3. Petroleum is a mixture of __________( organic compoundsconsisting entirely of Hydrogen and Carbon)
  3. 4. Oil that is left after crude oil distillation
  4. 5. Device used to condense vapor into liquid
  5. 6. Process of seperating the components or substances from a liquid mixture by boiling and condensation
  6. 8. It is used in production of fertilizers