Across
- 2. compounds that contain carbon atoms
- 5. hydrocarbons used in Styrofoam and synthetic rubber
- 8. most plentiful fossil
- 12. a mixture of hydrocarbon gases and vapors found in porous formations in the earth's crust
- 13. colorless, crystalline solid with an extremely high density
- 14. simplest organic compound composed of carbon and hydrogen
- 15. solid residue left after bituminous coal is heated
- 16. straight-chain hydrocarbons connected by single covalent bonds
Down
- 1. Carbon has a strong tendency to form these bonds
- 3. type of amorphous carbon that is used to absorb toxic waste and remove ozone
- 4. carbon-containing residues that remain after decomposed by heat
- 6. First element in Group 14
- 7. formula of a compound that shows the exact number of atoms of each type of element present in a molecule
- 9. Graphite is held together by these weak forces
- 10. compounds that have ionic bonds
- 11. series of organic compounds called the paraffin series