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Chemistry > C6.2 Test Buffer Deck > Flashcards

C6.2 Test Buffer Deck Flashcards

1
Q

Hydrocarbon

A

compound that only contains hydrogen and carbon atoms

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2
Q

why do alkanes form a homologous series

A

they have the same general fromula

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3
Q

alkane general formula

A

CnH2n+2

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4
Q

complete combutstion products?

A

CO2 and water

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5
Q

why carbon monoxide bad

A

toxic and causes suffocation

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6
Q

why do alkenes form a homologous series

A

same general formula

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7
Q

Why are alkanes saturated

A

because their carbon atoms are joined by C-C single bonds only

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8
Q

alkene general formula

A

CnH2n

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9
Q

why are alkenes unsaturated

A

bonds arent wholly made up of C-C single bonds

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10
Q

what is a functional group

A

a specific group of atoms in a compound which is responsible for that compounds chemical reactions

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11
Q

what is alkene functional group

A

C=C double bond

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12
Q

what type of reaction does the C=C double bond in alkenes allow for

A

addition reactions

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13
Q

example of addition reaction

A

ethene + bromine -> dibromoethane

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14
Q

bromine saturation test

A

solution turns colourless with alkene due to addition reaction, stays orange-brown when mixed with alkanes

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15
Q

alkene addition reaction with hydrogen and nickel catalyst

A

ethene + hydrogen -> ethane

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16
Q

alcohol functional group

A

hydroxyl, -OH

17
Q

alcohol suffix

A

‘ol’

18
Q

alcohol general formula

A

CnH2n+1OH

19
Q

complete combustion of an alcohol

A

ethanol + oxygen -> carbon dioxide + water

20
Q

what can you do with the hydroxyl functional group

A

oxidise to form carboxylic acid

21
Q

carboxylic acid functional group

A

carboxyl, -COOH

22
Q

carboxylic acid suffix

A

‘anoic acid’

23
Q

how can a carboxyilic acid be formed

A

when an alcohol reacts with oxidising agent such as potassium manganate solution

24
Q

how can ethanol be oxidised to ethanoic acid

A

add acidified potassium manganate solution to a test tube of ethanol and warm in a water bath. colour change from purple to very pale pink

25
Q

carboxylic acid reacts with metals to form

A

salts and hyddrogen

26
Q

carboxylic acid reacts with alkalis or bases to form

A

salts and water

27
Q

carboxylic acid reacts with carbonates to form

A

salts, water and carbon dioxide

28
Q

suffix for salt formed in carboxylic acid reaction

A

‘oate’ like ethanoate

29
Q

crude oil is formed from

A

the remains of marine organisms that lived millions of years ago

30
Q

crude oil is a

A

fossil fuel, finite resource

31
Q

why is crude oil non-renewable

A

it is being used up quicker than it is being formed

32
Q

what is crude oil made up of

A

complex mixture of hydrocarbons, mostly alkanes

33
Q

the more carbon atoms there are in alkane molecules…

A

larger the molecules, stronger the intermolecular forces, higher the boiling point

Chemistry (26 decks)

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