Organic Chemistry

2. The force holding atoms together in a molecule.
4. The alkane with the formula C4H10
7. The state of matter at the very top of a fractionating column where the smallest alkanes exit.
9. The physical process used to separate the different mixtures in crude oil.
10. The thick, sticky fraction at the very bottom of the tower used for surfacing roads.
12. The element whose symbol is C and forms the backbone of all organic molecules.
14. A compound made only of hydrogen and carbon atoms.
17. The number of carbon atoms in a propane molecule.
19. The formula C2H5F is the molecular formula of this haloalkane.
20. The branch of chemistry that studies carbon compounds.
21. A thick, black liquid mixture of hydrocarbons found deep underground.

1. The phase change that occurs when a gas cools down and turns back into a liquid inside the tower.
3. The name of the five-carbon alkane whose prefix means five, just like a shape with five sides.
5. The most abundant element in the universe, represented by the symbol H.
6. The term for a group of hydrocarbons with similar boiling points that condense together.
8. In fractional distillation, substances are separated because they have different ______ points.
9. The number of covalent bonds a carbon atom usually forms.
11. The prefix added to ethane to form the haloalkane CH3CH2Cl.
13. The general family name for hydrocarbons with only single bonds.
15. What the boiling point does as the carbon chain length of an alkane molecule increases.
16. The type of chemical bond formed when carbon and hydrogen atoms share electrons.
18. The main gas found in natural gas and the simplest alkane molecule.