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- 1. Multiple Choice
In which of these are the atoms held together by an ionic bond?
Br2
H2O2
CaS
CO
- 2. Multiple Choice
Covalent bond forms between....
Nonmetals
Metals
Nonmetal and a Metal
Metal and a Nonmetal
- 3. Multiple Choice
Ionic bonds are usually formed between two nonmetals.
True
False
- 4. Multiple Choice
Ionic Bonding involves...
The transfer of protons
The transfer of nuetrons
The transfer of electrons
- 5. Multiple Choice
Which type of bond has an unequal sharing of electrons?
Polar Covalent
Non Polar Covalent
Ionic
Metallic
- 6. Multiple Choice
Which of these covalent bonds would be the strongest?
C − O
C ≡ O
C = O
they have the same strength
- 7. Multiple Choice
Which of these covalent bonds would be strongest?
S − F
S − Cl
S − Br
S − I
- 8. Multiple Choice
When bonds are broken, energy is....
absorbed; Breaking bonds is endothermic.
released; Breaking bonds is exothermic.
- 9. Multiple Choice
Which of the following is NOT a characteristic typical of ionic compounds?
High melting point
Conducts electricity when dissolved in water
Hard, crystalline solids
Low boiling points
- 10. Multiple Choice
Which type of material usually involves atoms sharing a "sea of electrons"
ionic
Covalent
Metallic
- 11. Multiple Choice
An unknown chemical is a white powder in appearance, has a low melting point, dissolves in water, but doesn't conduct electricity. What type of bonds are involved?
ionic
Covalent
Metallic
- 12. Multiple Choice
A mystery substance is a blue crystalline solid, dissolves in water and conducts electricity when molten (melted).
ionic
covalent
metallic
- 13. Multiple Choice
Which of these occurs in an ionic bond?
two atoms share two electrons
like-charged ions attract
oppositely charged ions attract
two atoms share more than two electrons
- 14. Multiple Choice
Why do atoms bond?
to increase their atomic numbers
to become more polar
to attain a noble-gas electron configuration
to become more paramagnetic
- 15. Multiple Choice
In which of these are the atoms held together by an ionic bond?
Br2
H2O2
CaS
CO
- 16. Multiple Choice
Covalent bond forms between....
Nonmetals
Metals
Nonmetal and a Metal
Metal and a Nonmetal
- 17. Multiple Choice
Ionic Bonding involves...
The transfer of protons
The transfer of nuetrons
The transfer of electrons
- 18. Multiple Choice
Which type of bond has an unequal sharing of electrons?
Polar Covalent
Non Polar Covalent
Ionic
Metallic
- 19. Multiple Choice
When bonds are broken, energy is....
absorbed; Breaking bonds is endothermic.
released; Breaking bonds is exothermic.
- 20. Multiple Choice
Which of the following is NOT a characteristic typical of ionic compounds?
High melting point
Conducts electricity when dissolved in water
Hard, crystalline solids
Low boiling points
- 21. Multiple Choice
Which type of material usually involves atoms sharing a "sea of electrons"
ionic
Covalent
Metallic
- 22. Multiple Choice
An unknown chemical is a white powder in appearance, has a low melting point, dissolves in water, but doesn't conduct electricity. What type of bonds are involved?
ionic
Covalent
Metallic
- 23. Multiple Choice
A mystery substance is a blue crystalline solid, dissolves in water and conducts electricity when molten (melted).
ionic
covalent
metallic
- 24. Multiple Choice
Which of these occurs in an ionic bond?
two atoms share two electrons
like-charged ions attract
oppositely charged ions attract
two atoms share more than two electrons
- 25. Multiple Choice
Why do atoms bond?
to increase their atomic numbers
to become more polar
to attain a noble-gas electron configuration
to become more paramagnetic
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