What are organic compounds (containing carbon atoms) used for?

What are hydrocarbons?

What is crude oil?

What's the difference between a mixture and compounds?

How are crude oils separated?

Why is fractional distillation used?

What are fractions?

the properties of substances do not change when they are mixed...

What is an alkane?
(give the general formula)

Why are alkanes referred to as 'saturated' hydrocarbons?

Name the first four alkanes.

The properties of hydrocarbons depend...

Give the properties of short molecules.

Give the properties of long molecules.

Define:
a) viscosity
b) volatility

Which type of hydrocarbons are more useful as fuels?

Describe the process of fractional distillation.

How are the fractions from crude oil used?