4.1 Fuels from Crude Oil

Question 1

What does crude oil contain?

Answer 1

Many different compounds that boil at different temperatures

Question 2

Why does crude oil need to be separated to make useful fuels?

Answer 2

Because the different compounds in crude oil burn under different conditions

Question 3

How do we separate a mixture of liquids?

Answer 3

By distillation

Question 4

What does simple distillation of crude oil produce?

Answer 4

Liquids that boil within different temperature ranges

Question 5

What are the liquids produced called?

Answer 5

Fractions

Question 6

What are most of the compounds in crude oil called?

Answer 6

Hydrocarbons

Question 7

What do hydrocarbon molecules contain?

Answer 7

Only carbon and hydrogen

Question 8

What are many hydrocarbons called?

Answer 8

Alkanes

Question 9

What is the general formula for an alkane?

Answer 9

CnH2n+2

Question 10

What do we call alkanes and why?

Answer 10

Saturated hydrocarbons because they contain as many hydrogen atoms as possible