crude oil and hydrocarbons

Question 1

crude oil produces many things, an example of this would be:

Answer 1

plastics
petrol
pharmaceuticals
cosmetics

Question 2

where can we find crude oil

Answer 2

in rocks.

Question 3

what type of resource is crude oil?

Answer 3

finite resource

Question 4

what is meant by finite resource?

Answer 4

If we continue using it then crude oil will one day run out

Question 5

How is crude oil formed

Answer 5

Crude oil is formed over millions of years from the remains of tiny see creatures called plankton which were buried in mud

Question 6

Crude oil is a mixture of molecules called______

Answer 6

hydrocarbons

Question 7

What is the formula for methane

Answer 7

CH4
Methane contains one carbon atom covalently bonded to 4 hydrogen atoms

 H H-C-H
 H

Question 8

What are hydrocarbons

Answer 8

Hydrocarbons are molecules made up of hydrogen and carbon atoms only

Question 9

Hydrocarbons like methane and Ethan are called

Answer 9

alkanes

Question 10

What is the general formula for an alkane?

Answer 10

CnH2n+2

if we know the number of carbon atoms in the alkane (n) then we can calculate the number of hydrogen atoms.
Multiply carbon atoms by 2 then add 2

Question 11

Propane is an alkane with three carbon atoms. What is the formula for propane. Use the general formula

Answer 11

C3H8

CnH2n+2

Question 12

beaten as an alkane with four carbon atoms what is the formula of butane

Answer 12

C4H10

CnH2n+2

Question 13

What do scientists say about alkanes and why

Answer 13

Scientists say that alkanes are saturated molecules. That is because the current items are fully bonded hydrogen atoms.