Brainscape's Knowledge GenomeTM

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


See full index

Chemistry Paper 2 > C15: Using Our Resources > Flashcards

C15: Using Our Resources Flashcards

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

What is corrosion?

A

The destruction of materials by chemical reactions with substances in the environment.

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

What is necessary for iron to rust?

A

Both air and water

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

How can corrosion be prevented?

A

Applying a coating that acts as a barrier, like greasing, paint or electroplating

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

What is bronze an alloy of? What is brass an alloy of?

A

Copper and tin. Copper and zinc

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

What are steels?

A

Alloys of iron that contain specific amounts of carbon and other metals

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

What are the properties of high carbon steel and low carbon steel?

A

High: strong but brittle. Low: softer and more easily shaped

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

What is the density of aluminium alloys?

A

Low

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

How is soda lime glass made?

A

Heating a mixture of sand, sodium carbonate and limestone

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

How is borosilicate glass made?

A

From sand and boron trioxide?

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

What type of glass melts at a higher temperature

A

Borosilicate glass

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

How are clay ceramics made?

A

Shaping wet clay and heating it

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

What is the difference between thermosoftening and thermosetting polymers?

A

Thermosoftening ones melt when heated but thermosetting ones don’t when heated

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What are the conditions of the Haber Process?

A

450 degrees, 200 atm and an iron catalyst

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

What can ammonia be used to manufacture?

A

Ammonium salts and nitric acid

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

What 3 things are obtained by mining?

A

Phosphate rock, potassium chloride and potassium sulfate

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

What does the rusting of ion produce?

A

Hydrated iron (III) oxide

17
Q

What are sacrificial methods?

A

Adding a more reactive metal on iron so that it doesn’t rust

18
Q

What does brittle mean?

A

The object will snap easily

19
Q

What are 2 main groups of ceramics?

A

Glass and clay ceramics

20
Q

What are properties of glass?

A

Strong, good thermal insulators and transparent

21
Q

What is a composite?

A

A material consisting of 2 or more materials with different properties that have been combined to produce a material with a more desirable property

22
Q

What are the 2 components most composites are made from?

A

The reinforcement (long fibres or fragments) and the matrix (binds reinforcement and gets hard)

23
Q

What 2 things does the property of a polymer depend on?

A

The monomer used and the conditions of the chemical reaction

24
Q

What are properties of polymers?

A

Flexible, good insulators of heat and electricity and easily shaped

25
Q

What conditions are needed for LDPE?

A

Moderate temperatures, high pressure and catalyst

26
Q

What are uses of LDPE?

A

Carrier bags

27
Q

What are uses for HDPE?

A

Drainpipes

28
Q

How are the polymer chains in thermosoftening polymers held together?

A

By weak intermolecular forces

29
Q

What types of reaction is the Haber Process?

A

Exothermic and reversible

30
Q

How is the ammonia and the hydrogen/nitrogen separated?

A

Ammonia is condensed as it has a low boiling point, and the nitrogen and hydrogen are recycled

31
Q

What is needed to favour the forward reaction in the Haber process?

A

Low temperature, high pressure due to moles

32
Q

Why is ammonia important?

A

It is used in fertilisers

33
Q

Where does the hydrogen for the Haber process come from?

A

Hydrocarbons

34
Q

How does ammonia produce nitric acid?

A

It reacts with oxygen and water in a series of reactions

35
Q

What is produced when phosphate rock reacts with nitric acid?

A

Phosphoric acid and calcium nitrate

36
Q

What is produced when phosphate rock reacts with sulfuric acid?

A

Calcium sulfate and calcium phosphate

37
Q

What is produced when phosphate rock reacts with phosphoric acid?

A

Calcium phosphate

Chemistry Paper 2 (8 decks)

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