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Metals Extraction Assessment D

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Last updated almost 5 years ago
19 questions
5
1
1
1
1
5
1
2
1
4
1
1
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3
2
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2
Question 1
1.

Complete the following table regarding the electrolysis of molten copper (II) bromide.

Question 2
2.

Question 3
3.

Question 4
4.

Question 5
5.

Question 6
6.

Question 7
7.

Question 8
8.

Question 9
9.

Question 10
10.



Question 11
11.

Question 12
12.

Question 13
13.

Question 14
14.

Question 15
15.

When Aluminum and copper (II) oxide are heated, a displacement reaction takes place
a. Write down the word equation for this reaction. (2 marks)
b. Name one metal that would remove the oxygen from aluminum oxide……………………………(1 mark)

Question 16
16.

Why alloys are stronger then pure metals?

Question 17
17.

Question 18
18.

Question 19
19.

Name one type of reaction we have seen in this unit AND give an example

Which statement is correct?
a. Lead chloride is ionic so solid lead chloride will conduct electricity
b. When a molten ionic compound conducts electricity free ions move through the electrolyte
c. When liquid mercury conducts electricity mercury ions move towards the negative electrode
d. During the electrolysis of a molten salt reduction will always occur at the positive electrode
A
B
C
D
All ionic substances in any state will conduct electricity
True
False
In the electrolysis of molten sodium Chloride, Sodium forms at the cathode and Chlorine at the anode.
True
False
The negative electrode is called the anode
True
False
For A–J below, circle choose the letter if the bulb will light

A
B
C
D
E
F
G
H
I
J
A
B
C
D
A
B
C
D
A
B
C
D
Which of the following ionic equation regarding displacement reaction will not happen?
a. Fe2+ + Zn -->Zn2++ Fe
b. Zn2+ + Fe -->Fe2++ Zn
c. Fe2+ + Ca -->Ca2++ Fe
d. Cu2+ + Mg -->Mg2++ Cu
A
B
C
D
Which of the following compounds is the most stable?
a. MgCO3
b. CuCO3
c. FeCO3
d. ZnCO3
A
B
C
D
The diagrams show two experiments to investigate metal reactivity.

In which of these experiments could the metal be copper?

A
B
C
D
Metals conduct electricity through movement of ions.
True
False
Alkali Metals do not react with oxygen
True
False