CHEM 104 EXAM10 Exam Questions and
Answers Verified Solutions Latest Update
2026/2027
Question:
• Which of the following molecules possess a dipole moment? Choose all that apply.
C2H2 H2O NF3
Answer:
H2O NF3
Question:
• Using the trends in electronegativity on the periodic table, which of the following
elements should possess the lowest electronegativity value?
Answer:
Barium
Question:
• Which of the following correctly describes a fundamental difference between single,
double and triple covalent bonds?
Answer:
Double and triple bonds involve the sharing of 4 and 6 electrons between two atoms respectively
while a single bond involves the sharing of only 2 electrons between two atoms.
Question:
• Which of the following molecules contains only bonds that have no dipole moments?
Answer:
All of the above: Electronegativity differences between the atoms involved in the bonds present are
all less than 0.5. Check the electronegativity difference between a C and H, a H and S, a N and Cl!
, Question:
• When an oxygen atom combines with another oxygen atom, the bond formed is
correctly described by which of the following statements? Choose all that apply.
Answer:
The bond formed shows shared electrons spending equal amounts of time around both atoms
involved in the bond. The bond formed is nonpolar.
Question:
• The premise behind VSEPR is most accurately stated by which of the following?
Answer:
The arrangement of atoms in a 3-D space will minimize the repulsion among valence electron
pairs.
Question:
• The statements are the distinguishing features of the representations referred to.
Carbon monoxide, CO, is a colorless, odorless but toxic gas. Which of the following best describes
the bonding present in this molecule?
Answer:
Polar covalent bonding, with the oxygen end partial negative and the carbon end partial positive.
Question:
Why: The electronegativity difference between C and O is 1.0 which is polar covalent bonding and
the oxygen has the higher electronegativity and so would be the partial negative end of the bond.
• How many total electrons (not electron pairs) are being shared in a double covalent
bond?
Answer:
4
Question:
Answers Verified Solutions Latest Update
2026/2027
Question:
• Which of the following molecules possess a dipole moment? Choose all that apply.
C2H2 H2O NF3
Answer:
H2O NF3
Question:
• Using the trends in electronegativity on the periodic table, which of the following
elements should possess the lowest electronegativity value?
Answer:
Barium
Question:
• Which of the following correctly describes a fundamental difference between single,
double and triple covalent bonds?
Answer:
Double and triple bonds involve the sharing of 4 and 6 electrons between two atoms respectively
while a single bond involves the sharing of only 2 electrons between two atoms.
Question:
• Which of the following molecules contains only bonds that have no dipole moments?
Answer:
All of the above: Electronegativity differences between the atoms involved in the bonds present are
all less than 0.5. Check the electronegativity difference between a C and H, a H and S, a N and Cl!
, Question:
• When an oxygen atom combines with another oxygen atom, the bond formed is
correctly described by which of the following statements? Choose all that apply.
Answer:
The bond formed shows shared electrons spending equal amounts of time around both atoms
involved in the bond. The bond formed is nonpolar.
Question:
• The premise behind VSEPR is most accurately stated by which of the following?
Answer:
The arrangement of atoms in a 3-D space will minimize the repulsion among valence electron
pairs.
Question:
• The statements are the distinguishing features of the representations referred to.
Carbon monoxide, CO, is a colorless, odorless but toxic gas. Which of the following best describes
the bonding present in this molecule?
Answer:
Polar covalent bonding, with the oxygen end partial negative and the carbon end partial positive.
Question:
Why: The electronegativity difference between C and O is 1.0 which is polar covalent bonding and
the oxygen has the higher electronegativity and so would be the partial negative end of the bond.
• How many total electrons (not electron pairs) are being shared in a double covalent
bond?
Answer:
4
Question:
