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National 5 Chemistry (lesson by lesson) > U2-1-0 - N4 Revision > Flashcards

U2-1-0 - N4 Revision Flashcards

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1
Q

Hydrocarbon

A

Compound which contains only carbon and hydrogen.

E.g. C3H8

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2
Q

Products of complete combustion of hydrocarbons

A

Carbon dioxide and water

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3
Q

Products of incomplete combustion of hydrocarbons

A

Carbon monoxide and water

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4
Q

Chemical test for carbon dioxide

A

Limewater turns from clear to cloudy

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5
Q

Homologous series

A

A group of compounds with the same general formula and similar chemical properties.

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6
Q

General formula for alkanes

A

CnH2n+2

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7
Q

General formula for alkenes

A

CnH2n

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8
Q

General formula for cycloalkanes

A

CnH2n

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9
Q

Alkane, alkene or cycloalkane?

A

Alkene

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10
Q

Alkane, alkene or cycloalkane?

A

Cycloalkane

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11
Q

Alkane, alkene or cycloalkane?

A

Alkane

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12
Q

Why is this structure classified as an alkane?

A

Single C–C bonds only, follows CnH2n+2

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13
Q

Why is this structure classified as a cycloalkane?

A

Ring structure, follows CnH2n

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14
Q

Why is this structure classified as an alkene?

A

Carbon to carbon double bond (C=C), follows CnH2n

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15
Q

Name ending for alkenes

A

-ene

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16
Q

Name prefix for cycloalkanes

A

Cyclo-

17
Q

Name ending for alkanes

A

-ane

18
Q

Name this compound

A

Methane

19
Q

What is missing from the name?

butene

A

Location of the double bond (but-1-ene)

20
Q

Unsaturated compound

A

More hydrogens can be added on, e.g. C=C is present.

21
Q

Chemical test for unsaturation

A

Unsaturated compounds rapidly decolourise bromine water.

22
Q

Compounds from which homologous series will rapidly decolourise bromine water?

A

Alkenes (have C=C)

23
Q

Isomers

A

Compounds with the same molecular formula but different structural formulae.

24
Q

Which two homologous series are isomers of each other?

A

Alkenes and cycloalkanes

31
Q

Prefix for 1 carbon

A

Meth-

32
Q

Prefix for 2 carbons

A

Eth-

33
Q

Prefix for 3 carbons

A

Prop-

34
Q

Prefix for 4 carbons

A

But-

35
Q

Prefix for 5 carbons

A

Pent-

36
Q

Prefix for 6 carbons

A

Hex-

37
Q

Prefix for 7 carbons

A

Hept-

38
Q

Prefix for 8 carbons

A

Oct-

National 5 Chemistry (lesson by lesson) (28 decks)

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