Chem 1010 3rd Sample Quiz for Module 10 Updated by JAP, 12/02
You should study your Handbook module BEFORE taking this exam. When taking it you should do so under exam
conditions, i.e. alone, using only a calculator and periodic table, and waiting until you have completely finished before
checking your answers.
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1: K-TYPE answer format: Mark a if A, B, C are correct; b if A, C; c if B, D; d if D only; e otherwise.
A: HF has a lower melting point than expected compared to similar compounds due to hydrogen bonding.
B: Liquid water is more dense than solid water (ice) at 0 ˚C.
C: Hydrogen bonding is an exceptionally strong ionic interaction.
D: The melting point is the temperature at which the solid and liquid states have the same vapor pressure.
2: K-TYPE answer format: Mark a if A, B, C are correct; b if A, C; c if B, D; d if D only; e otherwise.
A: Particles in crystalline solids are arranged in an orderly fashion.
B: Many molecular solids are gases or liquids at room temperature and 1 atm pressure.
C: The strength of a hydrogen bond is much less than the strength of a covalent bond.
D: The heat of vaporization increases as intermolecular forces decrease.
3: Calculate the heat change when 92.8 grams of ice at - 23oC is heated to 50.0oC.
A: 31 kJ B: 28 kJ C: 55 kJ D: 4.5 kJ E: 13 kJ
4: Which of the following would have the highest viscosity at a temperature and pressure where all are liquid?
A: He B: Rn C: Ne
5: What type of force(s) must be broken in order to boil CH3CH2OH?
A: covalent bonds
B: H-bonding
C: induced dipole-induced dipole interaction (London dispersion forces) AND covalent bonding
D: induced dipole-induced dipole interaction (London dispersion forces) AND H-bonding
E: covalent bonds, induced dipole-induced dipole interaction (London dispersion forces), AND H-bonding
6: K-TYPE answer format: Mark a if A,B,C are correct; b if A, C; c if B, D; d if D only; e otherwise.
A: A bond in which electrons are shared is called an ionic bond.
B: If lithium were to react with nitrogen, the resulting compound would have ionic bonding.
C: Molecular covalent substances tend to have high boiling points.
D: If magnesium were to react with fluorine, the formula of the resulting compound would be MgF2.
Pa
g
e 301
