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- 1. Multiple Choice
What type of bonding occurs between non-metal atoms?
ionic bonding
metallic bonding
covalent bonding
- 2. Multiple Choice
What type of bonding occurs between non-metal AND metal atoms?
ionic bonding
metallic bonding
covalent bonding
- 3. Multiple Choice
What type of bonding occurs between metal atoms?
ionic bonding
metallic bonding
covalent bonding
- 4. Multiple Choice
Are covalent bonds strong or weak?
strong
weak
- 5. Multiple Choice
Covalently bonded substances consist of either simple molecules or giant covalent structures. What are simple molecules?
molecules that contain only a few atoms held together by covalent bonds
structures that contain many atoms, each joined to adjacent atoms by covalent bonds
- 6. Multiple Choice
True of false? Simple molecular substances have low melting and boiling points.
True
False
- 7. Multiple Choice
Why do simple molecular substances have low melting and boiling points?
The intermolecular forces between the molecules in a simple molecule are weak. This means not much energy is needed to break them.
The covalent bonds holding the atoms together in a simple molecule are strong. A large number of covalent bonds hold the atoms together in simple molecules.
- 8. Multiple Choice
What happens when a simple molecular substance melts or boils?
The weak intermolecular forces between the molecules break.
Strong covalent bonds between the atoms of the molecule break.
- 9. Multiple Choice
Why do weak intermolecular forces between simple molecules result in low melting and boiling points?
Little energy is needed to break the strong covalent bonds.
Little energy is needed to break the weak intermolecular forces.
Lots of energy is needed to break the weak intermolecular forces.
- 10. Multiple Choice
Simple molecular substances are often ________ or ________ at room temperature because they have low melting and boiling points.
solid
liquid
gas
- 11. Multiple Choice
Do simple molecular substances conduct electricity?
Select yes or no and a reason.
yes
no
Simple molecular substances are held together by weak intermolecular bonds that are easily broken, enabling the molecules to flow and carry charge.
Simple molecular substances don't have any free electrons or an overall electric charge.
- 12. Multiple Choice
Which of the following simple molecular substances conduct electricity?
water
oxygen
carbon dioxide
all of these simple molecular substances
none of these simple molecular substances
- 13. Multiple Choice
Covalently bonded substances consist of either simple molecules or giant covalent structures. What are giant covalent structures?
molecules that contain only a few atoms held together by covalent bonds
structures that contain many atoms, each joined to adjacent atoms by covalent bonds
- 14. Multiple Choice
Which two of the following are examples of giant covalent structures?
graphite
silicon dioxide
oxygen
water
- 15. Multiple Choice
True of false? Giant covalent structures have low melting and boiling points.
true
false
- 16. Multiple Choice
Why do giant covalent structures have very high melting and boiling points?
Giant covalent structures are held together by a large number of strong covalent bonds that require a lot of energy to break them.
Giant covalent structures are held together by a large number of weak intermolecular forces that require a lot of energy to break them.
- 17. Multiple Choice
Which of the following are properties of diamond?
Soft
Hard
Low melting point
High melting point
Conducts electricity
- 18. Multiple Choice
Which of the following are properties of graphite?
Soft
Hard
Low melting point
High melting point
Conducts electricity
- 19. Fill in the Blank
Which giant covalent structure is best suited to be used as a cutting tool?
- 20. Fill in the Blank
Which giant covalent structure is best suited to be used as a lubricant for a lock which is jammed shut?
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