C7

Question 1

What is the homologous series

Answer 1

a group of organic compounds that react in similiar ways

Question 2

what happens when orange bromine water is added to an alkene

Answer 2

turns colourless

Question 3

what happens to longer chain hydrocarbons in the fractionating column

Answer 3

they condense back into liquids and drain out near the bottom

Question 4

What happens to shorter chain hydrocarbons in the fractionating column

Answer 4

they condense and drain out near the top

Question 5

what is the word equation for complete combustion

Answer 5

hydrocarbon+oxygen=carbon dioxide and water

Question 6

what are the properties of longer chain hydrocarbons

Answer 6

higher melting and boiling points
less flammable
less viscous

Question 7

what are the properties of shorter chain hydrocarbons

Answer 7

less viscous
lower melting and boiling points
more flammable

Question 8

formula for methane

Answer 8

CH4

Question 9

formula for ethane

Answer 9

C2H6

Question 10

formula for propane

Answer 10

C3H8

Question 11

formula for butane

Answer 11

C4H10

Question 12

What is fractional distillation

Answer 12

used to seperate compounds in a crude oil

Question 13

what is cracking

Answer 13

splitting up of long chain hydrocarbons

Question 14

why is there such a large variety of products from fractional distillation

Answer 14

the carbon atoms bond to form different groups