fuels

Question 1

what is a homologous series

Answer 1

a family of compounds with a general formula and similar chemical properties

Question 2

what is the general formula for an alkane

Answer 2

CnH2n+2

Question 3

what is an alkane factors

Answer 3

saturated
does not react with bromine water
used for fuels
single c to c bonds

Question 4

general formula for alkene

Answer 4

CnH2n

Question 5

alkene factors

Answer 5

a double c to c bond
unsaturated
decolourise with bromine water

Question 6

what is cracking

Answer 6

breaking large hydrocarbons into smaller more useful molecules

Question 7

prefixes

Answer 7

meth - 1
eth-2
prop-3
but -4
pent -5
hex-6
hept-7
oct -8

Question 8

fire triangle

Answer 8

heat oxygen and fuel

Question 9

what is exothermic

Answer 9

a reaction that gives out heat

Question 10

what is exothermic

Answer 10

a reaction that gives out heat

Question 11

what is endothermic

Answer 11

reaction that takes in heat

Question 12

how are fuels made

Answer 12

made from dead sea plants and animals covered in sediment

Question 13

how are crude oils separated

Answer 13

different boiling points allow them to be separated

Question 14

what is a biofuel

Answer 14

biodiseal

Question 15

advantage of bio fuel

Answer 15

saves energy

Question 16

disadvantage of biofuel