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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 10.7 More about structures — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
A wire carries 30 C in 10 s. Current?
300.0 A
3.0 A
40.0 A
0.3 A
2.
Which statement is NOT correct?
Ionic compounds conduct only when molten or dissolved.
Giant covalent substances have very high melting points.
Sodium chloride has ionic bonding.
Metals are brittle.
3.
Number of substances of each structure in a test set. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
4.
Number of substances of each structure in a test set. Which has the greatest value?
Dr Dabour Hub Academy - figure 2
Ionic
Simple molecular
Metallic
Giant covalent
5.
Steel is 0.2% carbon. Mass of carbon in 500 kg?
1.0 kg
499.0 kg
100.0 kg
2500.0 kg
6.
NaCl melts at 801 °C and methane at −182 °C. Difference?
983°C
801°C
182°C
619°C
7.
True or false? Simple molecules have very high melting points.
True
False
8.
Melting points of substances (°C). What is the total of all the values?
Dr Dabour Hub Academy - figure 3
4283
3550
3854
4712
9.
Hardness of iron and steels. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 4
A
B
C
D
10.
Steel is 0.2% carbon. Mass of carbon in 100 kg?
20.0 kg
0.2 kg
500.0 kg
99.8 kg
11.
Steel bars set in ____ give tall buildings strength.
concrete
wood
plastic
glass
12.
Hardness of iron and steels. Which statement best describes the pattern?
Dr Dabour Hub Academy - figure 5
"Hardness (relative)" rises to a peak at 1.2, then falls
"Hardness (relative)" stays the same
"Hardness (relative)" decreases as "Carbon (%)" increases
"Hardness (relative)" increases as "Carbon (%)" increases
13.
Why do metals conduct electricity as solids?
They have no electrons
Ions move freely
Electrons are free to move
They are molecular
14.
Hardness of iron and steels. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
15.
Water has ____ bonds within molecules.
no
metallic
ionic
covalent
16.
Conducts electricity? (1 = yes, 0 = no) What is the total of all the values?
Dr Dabour Hub Academy - figure 7
2
1
3
4
17.
Which statement is NOT correct?
Ionic compounds conduct only when molten or dissolved.
Delocalised electrons move freely.
Graphite is the non-metal that conducts.
Metal layers cannot slide.
18.
A wire carries 30 C in 6 s. Current?
180.0 A
5.0 A
0.2 A
36.0 A
19.
A wire carries 60 C in 20 s. Current?
80.0 A
0.3 A
1200.0 A
3.0 A
20.
Steel is 0.8% carbon. Mass of carbon in 1000 kg?
8.0 kg
800.0 kg
1250.0 kg
992.0 kg
21.
A metal contains positive ions and ____.
negative ions
neutrons only
negative electrons
protons only
22.
True or false? Solid ionic compounds conduct.
True
False
23.
Which statement is correct?
Solid ionic compounds conduct.
Metals contain negative ions.
Ionic substances are brittle.
Simple molecules have very high melting points.
24.
Which is the correct definition of “Malleable”?
Ratio of ions that makes charges balance.
Small group of covalently bonded atoms.
Ability to conduct heat or electricity.
Can be hammered into shape.
25.
Number of substances of each structure in a test set. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
26.
Melting points of substances (°C). What is the total of all the values?
Dr Dabour Hub Academy - figure 9
4934
3819
4485
4036
27.
True or false? Giant covalent substances melt easily.
True
False
28.
Which statement is NOT correct?
Simple molecular substances have low melting points.
Water has ionic bonds.
Metal ions are in fixed positions in layers.
Sodium chloride has ionic bonding.
29.
Which term matches this definition? “Ability to conduct heat or electricity.”
Simple molecule
Conductivity
Medicine
Oral rehydration salts
30.
Conducts electricity? (1 = yes, 0 = no) Which has the greatest value?
Dr Dabour Hub Academy - figure 10
Copper
Sugar
Molten NaCl
Solid NaCl
31.
Which is the correct definition of “Ionic bond”?
Mg²⁺, formed by losing two electrons.
Attraction between oppositely charged ions.
Three shared pairs, as in N2.
Regular 3D arrangement of ions.
32.
True or false? Alloys are harder because different atoms stop layers sliding.
True
False
33.
True or false? Simple molecular substances do not conduct.
True
False
34.
Melting points of substances (°C). Which has the greatest value?
Dr Dabour Hub Academy - figure 11
Water
Diamond
Methane
Iodine
35.
Metals are malleable because layers can ____.
break
melt
evaporate
slide
36.
Melting points of substances (°C). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 12
A
B
C
D
37.
True or false? Water has ionic bonds.
True
False
38.
Number of substances of each structure in a test set. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 13
A
B
C
D
39.
True or false? Graphite is the non-metal that conducts.
True
False
40.
True or false? Simple molecular substances have low melting points.
True
False
41.
Conducts electricity? (1 = yes, 0 = no) Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 14
A
B
C
D
42.
Graphite is the non-metal that ____.
is magnetic
is liquid
conducts
is hardest
43.
True or false? Metal layers cannot slide.
True
False
44.
Hardness of iron and steels. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 15
A
B
C
D
45.
Hardness of iron and steels. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 16
A
B
C
D
46.
Simple molecular substances have ____ melting points.
very high
low
metallic
infinite
47.
Hardness of iron and steels. What is the value of "Hardness (relative)" when "Carbon (%)" is 0.5?
Dr Dabour Hub Academy - figure 17
220
168
196
121
48.
A wire carries 12 C in 10 s. Current?
120.0 A
0.8 A
22.0 A
1.2 A
49.
Number of substances of each structure in a test set. Which has the smallest value?
Dr Dabour Hub Academy - figure 18
Ionic
Simple molecular
Giant covalent
Metallic
50.
Hardness of iron and steels. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 19
A
B
C
D
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Part of Chapter 10: Structure, Bonding, and Properties — see every lesson and quiz in this unit.
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