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SCIENCE C1 > Making polymers > Flashcards

Making polymers Flashcards

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0
Q

What is addition polymerisation

A

unsaturated monomer molecules (alkenes) react to form saturated polymers

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1
Q

How many bonds can carbon atoms have maximum

A

4

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2
Q

Do alkanes have any effect on bromine water

A

No

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3
Q

Do alkenes have any effect on bromine water

What reaction is this and what is made

A

Yes, de-colourise it (orange)

This is an ADDITION REACTION and a dibromo compound is made

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4
Q

What is needed for Polymerisation and why

A

Catalyst and high pressure. The alkenes join together so they don’t produce another substance

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5
Q

Why can large numbers of monomers can be joined to make long chain polymers

A

Monomer carbon-carbon bonds are easily broken

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6
Q

How many carbons in ethane/ethene?

A

2

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7
Q

How many carbons in propane/propene

What is the molecular formula

A

3

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8
Q

How many carbons in butane/butene

What is the molecular formula

A

4

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9
Q

An alkene contains two shared pairs of what?

A

Electrons

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10
Q

What can the alkenes made by cracking by used as

A

Monomers that react together to produce polymers

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11
Q

What monomer makes polyethene

A

Ethene

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12
Q

Ethane molecular formula

A

C2H6

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13
Q

Ethene molecular formula

A

C2H4

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14
Q

How many bonds do hydrogen atoms have

A

One bond each

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15
Q

What is a hydrocarbon called when it contains a single covalent bond

Is it saturated?

A

An alkane

This is saturated

16
Q

What is a hydrocarbon called when it contains a double carbon-carbon covalent bond

Is it saturated?

A

An alkene

It is not saturated

SCIENCE C1 (8 decks)

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