Alkanes and fractional distillation

Question 1

How are crude oils formed?
And where is it found?

Answer 1

Over millions of years from the fossilised remains of zooplankton
.It’s found in porous rocks in the earths crust

Question 2

Crude oil is what type of resource?
And what does that mean?

Answer 2

.Crude oil is a finite resource
.This means that it is getting used up faster than it’s getting replenished

Question 3

Most molecules in crude oil are ?

Answer 3

Hydrocarbons

Question 4

What are hydrocarbons?

Answer 4

Molecules made up of ONLY carbon and hydrogen molecules

Question 5

What are the traits of larger hydrocarbon molecules?

Answer 5

.More viscous(thick)
.Less volatile
.Higher boiling point
.Less easily ignited

Question 6

What is fractional distilation?

Answer 6

The separation technique that can separate compounds with varying boiling points

Question 7

What do each compound formed in fractional distillation contain?

Answer 7

Hydrogen and carbon,
with a similar number of carbon atmos

Question 8

What type of bonds are alkanes?

Answer 8

Single c-c bonds

Question 9

What are single bonds in alkanes called?

Answer 9

Statured hydrocarbons

Question 10

If a molecule only contains a single c-c bond it is a ?

Answer 10

Statured hydrocarbon

Question 11

How reactive are alkanes?

Answer 11

.Fairly unreactive
.They burn well

Question 12

What is the general formula for alkanes?

Answer 12

Cn +H2n + 2

Question 13

Name 4 alkanes in order of smallest to largest

Answer 13

Methane: C H4
Ethane: C2 H6
Propane: C3 H9
Butane: C4 H10

Question 14

What are some uses of crude oil?

Answer 14

Fuels: In order of heaviness/ smallest to longest hydrocarbon bonds

.Petrol,
.diesel
.kerosene
.heavy fuel oil