C9- Crude oil and fuels

Question 1

Crude oil def?
How is it extracted?
Made of what?
Source of what?

Answer 1

A mixture made from remains of biomass from microscopic organisms (algae and plankton)
Drilling
Different hydrocarbons
Petrol and diesel fuel

Question 2

How was crude oil made?

Answer 2

Layers of rock, creating high pressure and temperature, lack of oxygen

Question 3

Hydrocarbon

Answer 3

A compound that contains only hydrogen and carbon atoms

Question 4

How to make crude oil useful?

Answer 4

Fractional distillation to separate the substances

Question 5

What are alkanes?
What mainly consists of alkanes?

Answer 5

Saturated hydrocarbons, contain maximum number of hydrogen atoms
Crude oil

Question 6

What do straight lines in alkanes represent?
General formula for alkane molecules?

Answer 6

Single covalent bonds
CnH 2n+2

Question 7

First 6 alkanes?

Answer 7

Methane
Ethane
Propane
Butane
Pentane
Hexane

Question 8

Alkane state at room temp depends on..?
Why?

Answer 8

Depends on intermolecular forces
Bigger forces, higher boiling point