4 Chemical Changes - Reactivity Series Flashcards

1
Q

What is the reactivity series?

A

A list of elements ordered by their reactivity

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

How can metals be placed in order of their reactivity?

A

Add the metals to water or acid and see which ones react the most (by how much fizzing there is)

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

What is the name for a reaction where oxygen is removed from a compound?

A

Reduction

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

Explain why zinc can be extracted from zinc oxide with carbon but magnesium cannot be extracted from magnesium oxide with carbon

A

Magnesium is more reactive than carbon (1), Zinc is less reactive than carbon (1), Carbon can therefore remove oxygen from zinc oxide but not magnesium oxide (1)

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

Explain why gold and silver can be found naturally in the Earth’s crust

A

It is very unreactive

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

What process is used to extract metals more reactive than carbon

A

Electrolysis

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

Define an ore

A

A material containing enough metal in it for it to be economically worthwhile to extract the metal.

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

Define a displacement reaction

A

A reaction in which a more reactive element takes the place of a less reactive element in one of its compounds or in solution

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

Define oxidation in the context of loss and gain of electrons

A

Oxidation is the loss of electrons

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

Define reduction in the context of loss and gain of electrons

A

Reduction is the gain of electrons

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

Which of the substances below has been oxidized and which has been reduced? Al3+ + Fe gives Fe3+ + Al

A

Aluminium has been reduced and iron has been oxidised

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