Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Chemistry > Unit 3 i) Materials > Flashcards

Unit 3 i) Materials Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Chemistry flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

Where do plastics come from?

A

Most of the plastics we use on a daily basis are made from chemicals obtained from CRUDE OIL

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Why are synthetic polymers used?

A

Synthetic polymers have a greater range of properties such as: flexibility, strength, water resistant

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Property and use of : polyethene?

A

Property: does not rust Use: water pipes

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Property and use of : perspex?

A

Property: does not shatter Use: bus shelters

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

Property and use of : kevlar?

A

Property: very strong Use: bullet proof vests

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

Property and use of : formica?

A

Property: heat-proof Use: kitchen work tops

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Name 2 problems with polymers

A

1.Burning- produce poisonious gases when burned 2.Durability- most polymers are non-biodegradable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What are thermoplastics/thermosoftening plastics

A

These plastics CAN be reshaped when heated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are thermosetting plastics?

A

These plastics CANNOT be respahed when heated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What is polymerisation?

A

Polymers are made by joining many small molecules (monomers) together.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

Naming Polymers Monomer 1.ethene 2.vinyl chloride 3.styrene

A

Polymer 1.polyethene (polythene) 2.polyvinylchloride (PVC) 3.polystyrene

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What are the 2 types of polymerisation?

A
  1. Addition Polymerisation 2. Condensation Polymerisation
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How does addition polymerisation work?

A

Double bond is broken Monomers add on

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Condensation Polymerisation

A

Process whereby many monomers join to form one large polymer with loss of water. These polymers are made from monomers with 2 FUNCTIONAL GROUPS per molecule

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What reacts to make polyesters?

A

Diols + Diacids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What reacts to form polyamides?

A

Diamines + Diacids Nylon is a polyamide

17
Q

What process is used to break down polymers?

A

Hydrolysis

18
Q

What are plastics?

A

Plastics are substances that are made up of very large, long chain molecules called polymers. Most are synthetic(not natural)

19
Q

Name 3 examples of natural polymers?

A

Silk Wool Starch Cellulose Proteins

20
Q

What is a ceramic material?

A

A ceramic is a material that is neither metallic nor organic. eg Al2O3, SiC, SiO2

21
Q

What are the properties of ceramic materials?

A

Hard/Strong Brittle Unreactive Non-Conductors of heat and electricity

22
Q

What are the uses of ceramic materials?

A

Pottery Dishes Bricks Tiles Glass Cement

23
Q

What group is this?

A

Hydroxyl

24
Q

What group is this?

A

Carboxyl (COOH)

Chemistry (10 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions