-called a fossil fuel

-also called crude oil

-made of many substances, a mixture

-a non renewable resource






Why Find Alternatives?

-we might run out

-pollution (global warming, health)


-dependence of foreign countries

Gray Box pg. 96

5) As density increases, boiling points and melting points also increase.

6) a: solid=none

liquid=pentane through hexadecane

gas=methane through ethane

b: boiling point is not good...too high

7) increases

8) both float in water

0.9 one sinks, 0.6 one floats

9) insoluble in water