5.7.1.1 crude oil, hydrocarbons and alkanes

Question 1

What is a crude oil

Answer 1

A finite resource found in rocks

Question 2

Crude oil is the remains of..

Answer 2

ancient biomass, mainly plankton

Question 3

What is crude oil a mixture of?

Answer 3

very large compounds, mostly hydrocarbons- molecules made up of hydrogen and carbon only.

Question 4

What are alkanes?

Answer 4

any of the series of saturated hydrocarbons including methane, ethane, propane, butane and higher members.

Question 5

Define saturated

Answer 5

containing the greatest possible number of hydrogen atoms, without carbon–carbon double or triple bonds.

Question 6

Define unsaturated

Answer 6

having carbon–carbon double or triple bonds and therefore not containing the greatest possible number of hydrogen atoms.

Question 7

What is the general formula for the homologous series of alkanes

Answer 7

CnH2n+2

Question 8

List the first four members of alkanes

Answer 8

Methane, ethane, propane and butane

Question 9

What are the two ways in which alkanes can be represented

Answer 9

CnH2n+2 or bond model

Question 10

Define homologous

Answer 10

Carbon/hydrogen molecules which have the same relation to each other

Question 11

Define heterogenous

Answer 11

Carbon/hydrogen atoms which have an unalike relation to each other