CHEM 120 FINAL EXAM QUESTIONS AND ANSWERS UPDATED (2024/2025) (VERIFIED ANSWERS)CHEM 120 FINAL EXAM QUESTIONS AND ANSWERS UPDATED (2024/2025) (VERIFIED ANSWERS)CHEM 120 FINAL EXAM QUESTIONS AND ANSWERS UPDATED (2024/2025) (VERIFIED ANSWERS)CHEM 120 FINAL EXAM QUESTIONS AND ANSWERS UPDATED (2024/202...
CHEM 120 FINAL EXAM QUESTIONS AND
ANSWERS UPDATED (2024/2025)
(VERIFIED ANSWERS)
A cycloalkane molecule contains 9 carbon atoms. How many hydrogen
atoms are present in the molecule? - ANS ✓18
What statement concerning propane and 2-propanol is false?
A) 2-propanol has stronger intermolecular forces than propane
B) Propane and 2-propanol are both organic compounds
C) Propane is likely a gas at room temperature and 2-propanol is likely a
liquid at room temperature
D) Propane and 2-propanol are both hydrocarbons
E) 2-propanol has a higher boiling point than propane - ANS ✓D) Propane
and 2-propanol are both hydrocarbons
True or False: Pentane is an isomer of C5H12. - ANS ✓True
True or False: 2-methylbutane is an isomer of C5H12. - ANS ✓True
True or False: 2,2-dimethylpropane is an isomer of C5H12. - ANS ✓True
,True or False: Cyclopentane is an isomer of C5H12. - ANS ✓False
Are organic or inorganic compounds typically not water soluble? - ANS
✓organic
Are organic or inorganic compounds often flammable? - ANS ✓organic
Do organic or inorganic compounds contain ionic bonds? - ANS ✓inorganic
Are organic or inorganic compounds typically have weak intermolecular
forces? - ANS ✓organic
What is the structure of an ether? - ANS ✓
Are alkenes saturated or unsaturated? Why? - ANS ✓Alkenes are unsaturated
because they could hold more hydrogen if the double bond was broken
What is an example of a cis stereoisomer? - ANS ✓
What is the structure of trans-1,3-dimethylcyclohexane? - ANS ✓a.
What is the structure of 1-bromo-3-methylpentane? - ANS ✓
, What is the structure of 4-isopropyloctane/4(1-methylethyl)octane? - ANS
✓
What is the molecular formula for 2,4-dimethylheptane? - ANS ✓C9H20
What is the condensed formula for 2,4-dimethylheptane? - ANS
✓CH3CH(CH3)CH2CH(CH3)(CH2)2CH3
What is the structural formula for iodocyclopropane? - ANS ✓
What is the structural formula for 2-methylpentane? - ANS ✓
What is boiling point? - ANS ✓The temperature at which a liquid boils
Between 2-dimethylpropane, pentane, 2-methylbutane, which has the
lowest boiling point and why? - ANS ✓2-dimethylpropane because even
though they are all isomers of eachother, 2-dimethylpropane is more branched
and condensed compared to the other two.
Arrange the following from lowest to highest boiling point: 2-butene, 3-
hexene, propene - ANS ✓propene, 2-butene, 3-hexene
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