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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 10.4 Inside ionic compounds — Quiz

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  • Questions count: 50
  • Passing grade: B+
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1.
Current as salt is added to water. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 1
A
B
C
D
2.
Calcium oxide and nickel chloride are ____.
covalent
ionic
simple molecular
metallic
3.
Which statement is NOT correct?
Ionic lattices are simple molecules.
Sodium (2,8,1) gives one electron to chlorine 2,8,7.
An ionic bond forms when a metal transfers electrons.
Molten ionic compounds conduct.
4.
Which term matches this definition? “A regular repeating pattern of positive and negative ions.”
Alloy
Metallic lattice
Giant ionic lattice
Simple molecule
5.
Which statement is NOT correct?
Solid ionic compounds do not conduct.
Solid salt conducts electricity.
Ionic compounds have high melting points.
Aluminium oxide is Al2O3.
6.
True or false? Sodium chloride melts at 801 °C.
True
False
7.
Melting points of ionic compounds (°C). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 2
A
B
C
D
8.
Which term matches this definition? “Melted; ions can move and conduct.”
Ionic bond
Giant covalent structure
Oral rehydration salts
Molten
9.
Which statement is correct?
Molten salt does not conduct.
Aluminium oxide is Al2O3.
Charges in an ionic compound do not balance.
NaCl melts at 80 °C.
10.
20 g of salt dissolves in 200 g of water (36 g/100 g max). Is it saturated? Give the max mass for 200 g.
20 g
200 g
72 g
36 g
11.
The bar chart shows melting points. Why is magnesium oxide's much higher?
Dr Dabour Hub Academy - figure 3
It is a metal
Its ions have double charges, so they attract more strongly
It is a simple molecule
It has weaker bonds
12.
Which statement is NOT correct?
Higher ion charges give stronger attraction.
Ionic compounds have low melting points.
Sodium chloride melts at 801 °C.
Ionic lattices are giant structures.
13.
Current as salt is added to water. Between which two values of "Salt (g)" did "Current (mA)" change the most?
Dr Dabour Hub Academy - figure 4
4 and 6
6 and 8
2 and 4
0 and 2
14.
Current as salt is added to water. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 5
A
B
C
D
15.
How many O²⁻ ions balance 4 Al³⁺ ions? (use whole numbers)
6
4
12
8
16.
Which term matches this definition? “Ionic compound NaCl.”
Calcium oxide
Ion
Sodium chloride
Electron shell
17.
Which statement is correct?
Higher charges give weaker bonds.
Solid salt conducts electricity.
Ionic compounds have low melting points.
Ions are held by strong electrostatic forces.
18.
What is the total charge of 100 Na⁺ ions and 100 Cl⁻ ions?
100
0
200
−100
19.
Na⁺ and Cl⁻ each have a full ____.
inner shell only
outer shell
nucleus
neutron set
20.
Which statement is correct?
Solid salt conducts electricity.
Ionic compounds have high melting points.
Ionic bonds share electrons.
Molten salt does not conduct.
21.
The formula of magnesium chloride is ____.
MgCl2
Mg2Cl
MgCl3
MgCl
22.
Which term matches this definition? “Force between opposite charges.”
Metallic bonding
Covalent bond
Malleable
Electrostatic attraction
23.
Which is the correct definition of “Formula of ionic compound”?
Row of the periodic table.
Ratio of ions that makes charges balance.
Negative ion.
Positive ion.
24.
Which statement is NOT correct?
MgO has a higher melting point than NaCl.
Aluminium oxide is Al2O3.
Charges in an ionic compound do not balance.
Ionic crystals are brittle.
25.
True or false? Molten salt does not conduct.
True
False
26.
True or false? Higher ion charges give stronger attraction.
True
False
27.
How many Cl⁻ ions balance 1 Mg²⁺ ions?
20
1
2
3
28.
Melting points of ionic compounds (°C). Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 6
A
B
C
D
29.
Which is the correct definition of “Electrostatic attraction”?
Force between opposite charges.
Substance reducing friction, e.g. graphite.
Three shared pairs, as in N2.
Ion needed for heart and muscle function.
30.
Which statement is correct?
Ionic bonds share electrons.
Higher charges give weaker bonds.
NaCl melts at 80 °C.
Ionic lattices are giant structures.
31.
In the diagram, when sodium and chlorine react, which way does the electron move?
Dr Dabour Hub Academy - figure 7
From chlorine to sodium
It is shared
To neon
From sodium to chlorine
32.
Current as salt is added to water. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 8
A
B
C
D
33.
Current as salt is added to water. Which graph shows these results correctly?
Dr Dabour Hub Academy - figure 9
A
B
C
D
34.
Current as salt is added to water. At what value of "Salt (g)" is "Current (mA)" greatest?
Dr Dabour Hub Academy - figure 10
2
8
6
0
35.
Many ionic compounds ____ in water.
do not dissolve
dissolve
burn
evaporate
36.
Which statement is correct?
Higher charges give weaker bonds.
The formula of calcium oxide is CaO.
Ionic compounds have low melting points.
Solid salt conducts electricity.
37.
True or false? Ionic crystals are malleable.
True
False
38.
Which term matches this definition? “Solid with a regular shape from an ordered lattice.”
Glucose
Neutron
Crystal
Covalent bond
39.
Solubility of ionic compounds (g/100 g). Which has the smallest value?
Dr Dabour Hub Academy - figure 11
CaCl2
MgO
NaCl
KCl
40.
True or false? Magnesium chloride is MgCl.
True
False
41.
True or false? Charges in an ionic compound balance.
True
False
42.
Which statement is NOT correct?
Dissolved ionic compounds conduct.
NaCl melts at 80 °C.
Ionic lattices are giant structures.
MgO has a higher melting point than NaCl.
43.
A NaCl crystal has millions of sodium and ____ ions.
chloride
sulfate
chlorine
oxide
44.
True or false? Ionic lattices are simple molecules.
True
False
45.
Current through sodium chloride in different states. What is the total of all the values?
Dr Dabour Hub Academy - figure 12
1.8
4.3
1.7
3.0
46.
20 g of salt dissolves in 100 g of water (36 g/100 g max). Is it saturated? Give the max mass for 100 g.
100 g
36 g
20 g
360 g
47.
Current as salt is added to water. Between which two values of "Salt (g)" did "Current (mA)" change the most?
Dr Dabour Hub Academy - figure 13
0 and 2
2 and 4
6 and 8
4 and 6
48.
Melting points of ionic compounds (°C). Which has the greatest value?
Dr Dabour Hub Academy - figure 14
CaO
NaCl
MgO
KCl
49.
Which is the correct definition of “Electron transfer”?
Regular 3D arrangement of ions.
Positive ions in a sea of delocalised electrons.
Metal atoms giving electrons to non-metal atoms.
Huge network of covalent bonds, e.g. diamond.
50.
MgO melts at 2852 °C and NaCl at 801 °C. Difference?
3653°C
801°C
2852°C
2051°C
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Part of Chapter 10: Structure, Bonding, and Properties — see every lesson and quiz in this unit.
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