Alkenes + alkanes - SC22

Question 1

what are the trends in physical properties of alkanes

Answer 1

as the number of carbon atoms increases, so do the boiling points

Question 2

what are 4 examples of alkanes?

Answer 2

methane, ethane, propane, butane

Question 3

what is the molecular and structure formula of methane?

Answer 3

CH4

and:
H
|
H-C-H
|
H

Question 4

What is the molecular and structure formula of ethane?

Answer 4

C2H6

and :

H H
H-C-C-H
| |
H H

Question 5

What is the molecular and structure formula of propane?

Answer 5

C3H8:

and
H H H
H- C-C-C -H
H H H

Question 6

General formula for Alkanes?

Answer 6

CnH2n+2

Question 7

General equation for alkenes?

Answer 7

CnH2n

Question 8

how do alkanes viscosity change as molecule size increases?

Answer 8

viscosity increases

Question 9

3 examples of alkenes?

Answer 9

Ethene, Propene, Butene

Question 10

How do Alkanes react with Bromine water?

Answer 10

No reaction - solution remains orange

Question 11

How do Alkenes react with bromine water? what type of reaction is this?

Answer 11

Orange -> colourless with Bromine water
An addition reaction

Question 12

What does saturated mean in alkanes?

Answer 12

all single covalent bonds between atoms

Question 13

What does unsaturated mean in Alkenes?

Answer 13

a double bond between 2 carbon atoms