Crazy Carbon

Question 1

What is a fuel

Answer 1

A substance that can be burned to release energy

Question 2

What is an alkane

Answer 2

Saturated hydrocarbon with the general formula CnH2n+2

Question 3

What is an alkene

Answer 3

Unsaturated hydrocarbon with the general formula CnH2n

Question 4

What is a cycloalkane

Answer 4

Saturated ring shaped hydrocarbon with the general formula CnH2n

Question 5

What is an unsaturated molecule

Answer 5

A molecule which contains a carbon to carbon double bond

Question 6

What is a saturated molecule

Answer 6

A molecule which does not contain a carbon to carbon double bond

Question 7

What is an addition reaction

Answer 7

When a molecule adds in across the carbon to carbon double bond in an alkene

Question 8

What is hydrogenation

Answer 8

An addition reaction in which hydrogen is added

Question 9

What is a homologous series

Answer 9

A family of molecules with the same general formula and similar chemical properties

Question 10

What is viscosity

Answer 10

The thickness of a liquid; very viscous means very thick

Question 11

What is flammability

Answer 11

How easily a substance burns; very flammable means burns easily

Question 12

What is fractional distillation

Answer 12

The process by which crude oil is separated into fractions

Question 13

What is a fraction

Answer 13

A group of hydrocarbons with a boiling point range

Question 14

What is a polymer

Answer 14

A long chain molecule made of repeating units

Question 15

What is a monomer

Answer 15

A small molecule used to form a polymer

Question 16

What is gram formula mass (GFM)

Answer 16

The mass of one mole of a compound

Question 17

What is a chemical reaction

Answer 17

A change in which a new substance is formed

Question 18

What are the three subsets of hydrocarbons

Answer 18

Alkanes, alkenes, cycloalkanes

Question 19

What are the first 8 molecule’s of the alkane family

Answer 19

Methane, ethane, propane, butane, pentane, hexane, heptane, octane

Question 20

What is the general formula of the alkanes

Answer 20

CnH2n+2

Question 21

What are the first 7 molecules of the alkenes

Answer 21

Ethene, propene, butene, pentene, hexene, heptene, octene

Question 22

What is the general formula of the alkenes

Answer 22

CnH2n

Question 23

What are the first 6 molecules of the cycloalkane family

Answer 23

Cyclopropane, cyclobutane, cyclopentane, cyclohexane, cycloheptane, cyclooctane

Question 24

What is the general formula of the cycloalkanes

Answer 24

CnH2n

Question 25

What hydrocarbon family is unsaturated

Answer 25

Alkenes

Question 26

What hydrocarbon families are saturated

Answer 26

Alkanes and cycloalkanes

Question 27

What is used to test for unsaturation

Answer 27

Bromine

Question 28

What is the colour change when testing for unsaturation with bromine

Answer 28

Orange to colourless

Question 29

What type of molecule is unsaturated

Answer 29

A carbon to carbon molecule

Question 30

What type of molecule is saturated

Answer 30

A molecule which doesn't have a carbon to carbon double bond

Question 31

What is the reaction called of an alkene with bromine

Answer 31

An addition reaction

Question 32

What is the reaction called of an alkene with hydrogen

Answer 32

Hydrogenation

Question 33

What is also hydrogenation

Answer 33

An addition reaction

Question 34

What happens when an alkene reacts with a hydrogen

Answer 34

An alkane is formed

Question 35

What are the products of an addition reaction

Answer 35

Alkenes

Question 36

What is a homologous series

Answer 36

A family of molecules with the same formula and chemical properties

Question 37

The size of a hydrocarbon increases, what happens to the viscosity

Answer 37

Increases

Question 38

The size of a hydrocarbon increases, what happens to the flammability

Answer 38

Decreases

Question 39

The size of a hydrocarbon increases, what happens to the rate of evaporation

Answer 39

Decreased

Question 40

The size of a hydrocarbon increases, what happens to the boiling point

Answer 40

Increases

Question 41

Why does the boiling point increase as the chain length increases

Answer 41

There are more attractions between the molecules so more energy is needed to beat them

Question 42

Why do branched chain molecules have lower boiling points than straight chain isomers

Answer 42

As branching increases the boiling point decreases because there are fewer points of contact

Question 43

What is a fraction

Answer 43

A group of hydrocarbons with a boiling point range

Question 44

How are the uses of fractions produced?

Answer 44

Through fractional distillation

Question 45

What is cracking

Answer 45

A process used to break up long chain hydrocarbons into short chain hydrocarbons

Question 46

Why is cracking done

Answer 46

There is a greater demand for short chain hydrocarbons than long hydrocarbons

Question 47

What is used to make plastics

Answer 47

Alkenes

Question 48

What is a use for alkanes

Answer 48

Natural gas

Question 49

What is use of alkenes

Answer 49

Alcohol, plastics

Question 50

What is a use of cycloalkanes

Answer 50

Pigmentation

Question 51

How do you calculate gfm

Answer 51

Mass (m) ÷ number of moles (n)

Question 52

How do you calculate mass

Answer 52

Number of moles (n) x gfm

Question 53

How do you calculate number of moles

Answer 53

Mass (m) ÷ gfm

Question 54

What can help when calculating gfm

Answer 54

Lines (|_)

Question 55

What is a section of polymer

Answer 55

The H shape (structure of monomer) repeated *without* double bond

Question 56

What are the three main fossil fuels

Answer 56

Coal oil gas