Energy

2. sources of energy that are naturally replenished
3. the process of producing syngas from coal, water, and sometimes O2
4. a collection of chemical reactions that converts a mixture of carbon monoxide and hydrogen/water gas to liquid hydrocarbons
8. materials extracted from the ground and burned to generate energy
9. materials that can be used to generate energy from fission or fusion of atoms
12. alkylation of unsaturated fuels (creating larger and branched molecules)
14. a positively charged carbon atom (usually intermediate)
15. the column which petroleum is fractionated through
17. finite sources of energy
18. sources of power
19. light hydrocarbons (in gas state) that are extracted directly from the oil mining process
21. a molecule comprised of entirely carbon and hydrogen

1. a fuel gas mixture made of hydrogen carbon monoxide and some carbon dioxide
5. a general term regarding a mixture of organic molecules (mainly hydrocarbons) extracted from the earth
6. a source of energy seldom used in its own state (made into a secondary source)
7. taking actions to preserve resources used for energy production
10. the separation of a mixture into its component parts (fractions)
11. the process in which striaght chain hydrocarbons are reformed to more efficient, branched-chain alkanes and cycloalkanes (some aromatics too) via catalyst
13. a rating of combustion performance
16. the lightest hydrocarbons produced in the refinery process
20. the process in which unsaturated hydrcarbons are extended