Brainscape's Knowledge GenomeTM

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


See full index

GCSE CHEMISTRY > C5 Chemical Changes > Flashcards

C5 Chemical Changes Flashcards

You may prefer our related Brainscape-certified flashcards:
GCSE Geography - AQA flashcards AP® Chemistry flashcards GCSE Religious Studies - Edexcel Route B flashcards GCSE Religious Studies - Eduqas Route A flashcards GCSE Religious Studies - Edexcel Route A flashcards GCSE Religious Studies - Eduqas Route B flashcards Periodic Table flashcards Chemistry 101 flashcards Organic Chemistry 101 flashcards
1
Q

What is the reactivity series?

A

Potassium
Sodium
Lithium
Calcium
Magnesium
Aluminium
Carbon
Zinc
Iron
Hydrogen
Copper
Silver
Gold

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

What determines the reactivity of a metal?

A

How easily the atoms of that element lose their outer shell electrons

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

Metal+acid——>

A

Salt+hydrogen

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

What is a displacement reaction?

A

A more reactive metal displaces a less reactive metal

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

What is the formula for sulphuric acid?

A

H2S04

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

What is a spectator ion?

A

It doesn’t take part and keeps the same charge

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

What does each change of 1 on the pH scale represent?

A

A 10 fold change in the hydrogen concentration

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

Strong acids ionise______

A

Completely

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

Weak acids ionise________

A

Partially

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

What is electrolysis?

A

Splitting up with electricity

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

For electrolysis to happen what needs to move

A

Ions need to move

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

What does oil rig stand for? (ONLY FOR ELECTRONS)

A

Oxidation
Is
Loss of electrons

Reduction
Is
Gain of electrons

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

What are electrodes in electrolysis usually made of?

A

Carbon

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

What is an electrolyte?

A

Liquid or solution that contains an ionic compound

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

What is mixed with aluminium to make it molten and why?

A

Cryolite
Lowers the melting point

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

What is mixed with aluminium to make it molten and why?

A

Cryolite
Lowers the melting point

17
Q

What are two ways of extracting metals from their ores?

A

Reduction with carbon
Electrolysis

18
Q

What are two ways of extracting metals from their ores?

A

Reduction with carbon
Electrolysis

19
Q

In aqueous solutions, which ion is discharged at the cathode?

A

The least reactive

20
Q

In aqueous solutions, which ion is discharged at the anode.

A

Always the hydroxide except when a halogens is present

21
Q

Metal carbonate+acid——>

A

salt+water+carbon dioxide

GCSE CHEMISTRY (9 decks)

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