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CHEM 1020 FINAL EXAM WITH
COMPLETE SOLUTIONS
Question 1: What is the most electropositive element?
CORRECT ANSWER: Li
Question 2: Which of the following elements has 3
electrons in the valence (outer) shell?
CORRECT ANSWER: B
Question 3: Which of the following would you expect to
have ionic bonds?
CORRECT ANSWER: CsF
Question 4: Which of the following would you expect to
have polar covalent bonds?
CORRECT ANSWER: NF3
Question 5: Which molecule has nonpolar covalent
bonds?
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CORRECT ANSWER: N2
Question 6: The number of electrons in the valence shell
of sulfur is?
CORRECT ANSWER: 6
Question 7: Oxygen is more electronegative than?
CORRECT ANSWER: sulfur
Question 8: The most electronegative elements in the
periodic table are generally found?
CORRECT ANSWER: toward the right in a horizontal
row and toward the top in a column
Question 9: For carbon monoxide, O has a formal charge
of?
CORRECT ANSWER: +1
Question 10: What is the formal charge of N in HNO3?
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CORRECT ANSWER: +1
Question 11: What is the percent s character in an sp2
hybridized orbital?
CORRECT ANSWER: 33%
Question 12: The maximum number of electrons that a
molecular orbital can contain is?
CORRECT ANSWER: 2
Question 13: The approximate H-C-H bond angle in
methane is?
CORRECT ANSWER: 109.5
Question 14: The Lewis structure of methane (sp3) is?
CORRECT ANSWER: tetrahedral
Question 15: What does acyclic mean?
CORRECT ANSWER: containing no rings of atoms
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Question 16: What does heterocyclic mean?
CORRECT ANSWER: ring shaped carbon chain which
has to have at least one atom that isn't carbon in the ring
Question 17: What is the name of the alkane that has 3
carbon atoms?
CORRECT ANSWER: propane
Question 18: Which of the following would exhibit
hydrogen bonding?
CORRECT ANSWER: CH3OH
Question 19: The more carbons an alkane has, what
happens to the boiling point?