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core chemistry > C1 - topic 5 - alkanes and alkenes > Flashcards

C1 - topic 5 - alkanes and alkenes Flashcards

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1
Q

Alkanes are all made up of what?

A

chains of carbon atoms with single bonds between them

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2
Q

Carbon atoms with single bonds between them are called what?

A

saturated hydrocarbons

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3
Q

why are carbon atoms with single bonds called saturated hydrocarbons?

A

because they have no spare bonds

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4
Q

why don’t Alkanes turn bromine water colourless?

A

because there are no spare bonds

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5
Q

why don’t Alkanes form polymers?

A

because there are no spare bonds

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6
Q

what are the first three Alkanes?

A

methane
ethane
propane

monkeys
eat
potatoes

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7
Q

what is the formula for methane?

A

CH(4)

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8
Q

what is the formula for ethane?

A

C(2)H(6)

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9
Q

what is the formula for propane?

A

C(3)H(8)

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10
Q

alkenes have what?

A

single bonds

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11
Q

what are alkenes?

A

chains of carbon atoms that have one or more double bonds

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12
Q

what are alkenes called?

A

unsaturated hydrocarbons

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13
Q

why are alkenes called unsaturated hydrocarbons?

A

because they have spare bonds

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14
Q

will alkenes decolourise bromine water? why?

A

yes because they form bonds with the bromine atoms

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15
Q

how do alkenes form polymers?

A

by opening up their double bonds to connect in a long chain

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16
Q

what are the first two alkenes?

A

ethane and propene

17
Q

what is the formula for ethene?

A

C(2)H(4)

18
Q

what is the formula for propene?

A

C(3)H(6)

19
Q

what does “meth” mean?

A

one carbon atom

20
Q

what does “eth” mean?

A

two carbon atoms

21
Q

what does “prop” mean?

A

three Carbon atoms

22
Q

what is the only difference between the name of an alkene and alkane?

A

the ending of their names - “ene” and “ane”

23
Q

what do all Alkanes have?

A

single bonds

core chemistry (11 decks)

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