Organic Chemistry

2. The phase change that occurs when a gas cools down and turns back into a liquid inside the tower.
4. The state of matter at the very top of a fractionating column where the smallest alkanes exit.
6. The force holding atoms together in a molecule.
7. In fractional distillation, substances are separated because they have different ______ points.
8. The element whose symbol is C and forms the backbone of all organic molecules.
12. A compound made only of hydrogen and carbon atoms.
15. The number of carbon atoms in a propane molecule.
16. The type of chemical bond formed when carbon and hydrogen atoms share electrons.
17. The main gas found in natural gas and the simplest alkane molecule.
19. DISTILLATION, The physical process used to separate the different mixtures in crude oil.
20. The name of the five-carbon alkane whose prefix means five, just like a shape with five sides.
21. The thick, sticky fraction at the very bottom of the tower used for surfacing roads.

1. The number of covalent bonds a carbon atom usually forms.
3. The branch of chemistry that studies carbon compounds.
5. The formula C2H5F is the molecular formula of this haloalkane.
7. The alkane with the formula C4H10
9. The general family name for hydrocarbons with only single bonds.
10. The prefix added to ethane to form the haloalkane CH3CH2Cl.
11. The term for a group of hydrocarbons with similar boiling points that condense together.
13. What the boiling point does as the carbon chain length of an alkane molecule increases.
14. OIL, A thick, black liquid mixture of hydrocarbons found deep underground.
18. The most abundant element in the universe, represented by the symbol H.