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Chemistry Y9 > Alkanes > Flashcards

Alkanes Flashcards

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1
Q

What is the general formula for alkanes?

A

Cn H2n+2

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2
Q

What is a saturates hydrocarbon?

A

Hydrocarbons that contains only single C-C bond

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3
Q

What is homologous series ?

A

Family of compounds which have similar chemical properties because they have the same functional group
Each member of a homologous series differs from the next by a CH2 group

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4
Q

Is alkanes saturated hydrocarbons?

A

Yes
Most of the hydrocarbons found in crude oil are from a homogeneous series knows as alkanes

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5
Q

Why is alkanes classified as a saturated hydrocarbon?

A

Because it contains single C-C bonds

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6
Q

What are the first 6 alkanes ?

A

Methane
Ethane
Propane
Butane
Pentane
Hexane

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7
Q

What is shortened structural and molecular formula of methane?

A

CH4
CH4

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8
Q

What is shortened structural and molecular formula of ethane?

A

CH3CH3
C2H6

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9
Q

What is shortened structural and molecular formula of propane?

A

CH3CH2CH3
C3H8

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10
Q

What is shortened structural and molecular formula of butane?

A

CH3CH2CH2CH3
C4H10

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11
Q

What is shortened structural and molecular formula of pentane?

A

CH3CH2CH2CH2CH3
C5H12

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12
Q

What is shortened structural and molecular formula of hexane?

A

CH3CH2CH2CH2CH2CH3
C6H14

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13
Q

What is a halogen?

A

Group 7 elements

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14
Q

Reaction of alkanes with a halogen?

A

Knows as substitution reaction when one atom is replaced by another
Only occurs in the presence of UV light

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15
Q

What is the equation of methane and bromine?

A

Methane+ bromine=bromomethane+ hydrogen bromide

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Chemistry Y9 (10 decks)

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