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Alhussan Chemistry — Stage 9

Chapter 10: Structure, Bonding, and Properties

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Chapter 11: Patterns in the Periodic Table

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Chapter 12: Chemical Reactions 3 and Rates

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Chapter 13: Planet Earth and Continental Drift

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Quiz

Chemistry 12.5 Extracting copper — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Which statement is correct?
Copper is ductile.
Bioleaching uses electricity.
Copper is brittle.
Heating copper carbonate gives hydrogen.
2.
Price rose from 3700 to 7500 $/t. Percentage increase?
203%
51%
3800%
103%
3.
Copper carbonate 12.4 g gave 4.0 g of oxide. Mass of CO2?
16.4 g
4.0 g
12.4 g
8.4 g
4.
Copper is ____ in the reactivity series.
absent
high
low
top
5.
Malachite contains copper ____.
oxide
sulfate
chloride
carbonate
6.
Mass fell from 6.2 to 4.0 g. Percentage lost?
55%
35%
65%
2%
7.
Copper conducts heat well so is used in ____.
insulation
handles
heat exchangers
oven gloves
8.
Uses of copper (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
9.
Copper price ($ per tonne). Between which two values of "Year" did "Price ($/t)" change the most?
Dr Dabour Hub Academy - figure 2
2005 and 2010
2015 and 2020
2000 and 2005
2010 and 2015
10.
Which statement is NOT correct?
Copper oxide is green.
The carbon reduces copper oxide.
Iron + copper sulfate → iron sulfate + copper.
Copper carbonate turns from green to black.
11.
Copper price ($ per tonne). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 3
A
B
C
D
12.
Which term matches this definition? “Used to displace copper from solutions.”
Biogas
Coefficient
Scrap iron
Closed system
13.
Which is the correct definition of “Reduction”?
Blue solution used in displacement tests.
H2, N2, O2, F2, Cl2, Br2, I2.
Dish for heating a solution.
Removal of oxygen from a compound.
14.
Malachite is a ____ ore.
red
green
blue
black
15.
Which is the correct definition of “Malachite”?
Blue solution used in displacement tests.
Methane made from waste.
More reactive metal replacing copper.
Green ore containing copper carbonate.
16.
Copper displaced by iron over time. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
17.
Copper oxide is 80% copper. Copper from 4 g of oxide?
0.8 g
4.0 g
5.0 g
3.2 g
18.
Copper displaced by iron over time. At what value of "Time (min)" is "Copper (g)" smallest?
Dr Dabour Hub Academy - figure 5
20
25
0
10
19.
Copper displaced by iron over time. At what value of "Time (min)" is "Copper (g)" greatest?
Dr Dabour Hub Academy - figure 6
15
0
5
20
20.
Copper price ($ per tonne). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 7
A
B
C
D
21.
Copper is ____.
liquid
soft as sodium
brittle
ductile
22.
Copper carbonate 12.4 g gave 8.0 g of oxide. Mass of CO2?
12.4 g
20.4 g
4.4 g
8.0 g
23.
Which is the correct definition of “Scrap iron”?
Methane made from waste.
Rock containing enough metal compound to extract.
Used to displace copper from solutions.
Reactant in thermite.
24.
Which is the correct definition of “Bioleaching”?
Blue solution used in displacement tests.
More reactive metal replaces a less reactive one in a compound.
Product of thermite used to weld rails.
Using bacteria to extract copper from low-grade ore.
25.
Copper is 60% of 2000 t used for electrical. Mass?
33 t
120,000 t
800 t
1200 t
26.
Which term matches this definition? “Removal of oxygen from a compound.”
Reduction
Salt
Subscript
Displacement reaction
27.
Uses of copper (%). Which has the greatest value?
Dr Dabour Hub Academy - figure 8
Building
Transport
Electrical
Machinery
28.
True or false? Silver displaces copper.
True
False
29.
True or false? Copper oxide is black.
True
False
30.
Which statement is correct?
Malachite is blue.
Copper ions in solution can be displaced by iron.
Copper is very reactive.
Copper oxide is green.
31.
Which term matches this definition? “Device transferring heat, often copper.”
Ductile
Aqueous displacement
Heat exchanger
Reduction
32.
Copper price ($ per tonne). Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 9
"Price ($/t)" decreases as "Year" increases
"Price ($/t)" stays the same
"Price ($/t)" increases as "Year" increases
"Price ($/t)" rises to a peak at 2010, then falls
33.
Uses of copper (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 10
A
B
C
D
34.
Which statement is NOT correct?
Copper is very reactive.
Copper oxide is black.
Copper is low in the reactivity series.
Malachite contains copper carbonate.
35.
Copper oxide is 80% copper. Copper from 8 g of oxide?
1.6 g
10.0 g
8.0 g
6.4 g
36.
Uses of copper (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 11
A
B
C
D
37.
Which statement is correct?
Copper carbonate turns from green to black.
Copper carbonate gains mass on heating.
Copper is very reactive.
Heating copper carbonate gives hydrogen.
38.
Uses of copper (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
39.
Which is the correct definition of “Displacement”?
Makes chlorides.
More reactive metal replacing copper.
Compound formed when acid hydrogen is replaced by a metal.
Black solid from heating copper carbonate.
40.
Uses of copper (%). About how many times bigger is Electrical than Other?
Dr Dabour Hub Academy - figure 13
23.5
5.9
11.8
17.6
41.
Mass during heating of copper carbonate. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 14
A
B
C
D
42.
True or false? Copper is ductile.
True
False
43.
Bacteria can extract copper from ____ ores.
high-grade
pure
low-grade
native
44.
Which term matches this definition? “More reactive metal replacing copper.”
Recycling
Copper oxide
Displacement
Excess base
45.
Mass during heating of copper carbonate. At what value of "Time (min)" is "Mass (g)" smallest?
Dr Dabour Hub Academy - figure 15
5
0
4
3
46.
Uses of copper (%). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 16
A
B
C
D
47.
Which term matches this definition? “Black solid from heating copper carbonate.”
Thermite reaction
Copper oxide
Heat exchanger
Coefficient
48.
Which statement is correct?
Recycling copper saves ore and energy.
Copper carbonate gains mass on heating.
Silver displaces copper.
Bioleaching uses electricity.
49.
Mass during heating of copper carbonate. What is the value of "Mass (g)" when "Time (min)" is 2?
Dr Dabour Hub Academy - figure 17
6.2
4.4
4.9
4.0
50.
Mass fell from 12.4 to 8.0 g. Percentage lost?
65%
35%
4%
55%
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Part of Chapter 12: Chemical Reactions 3 and Rates — see every lesson and quiz in this unit.
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