hydrocarbons

Question 1

organic chemistry

Answer 1

all about compounds that contain carbon

Question 2

how many bonds can each carbon atom make?

Answer 2

4

Question 3

define hydrocarbons

Answer 3

any compound that only contains hydrogen and carbon

Question 4

name the first 4 alkanes and give their formulas

Answer 4

methane CH4
ethane C2H6
propane C3H8
butane C4H10

Question 5

Define homologous series and give an example

Answer 5

a group of compounds with the same functional group that have similar chemical properties so will react in similar ways

Question 6

what is the general formula of alkanes?

Answer 6

Cn H2n +2

Question 7

what does alkanes being described as a saturated compound mean?

Answer 7

every carbon atom has 4 single covalent bonds

Question 8

group trends of alkanes as they increase in length

Answer 8

• higher boiling points
• less volatile ( harder to evaporate)
• more viscous (thick)
• less flammable (harder to ignite or burn)

Question 9

what are the main uses of hydrocarbons?

Answer 9

• fuels

Question 10

write the completed word equation

hydrocarbon + oxygen =

Answer 10

hydrocarbon + oxygen = carbon dioxide + water

Question 11

when does incomplete combustion occur

Answer 11

when there isn’t enough oxygen present