The document is a practice exam for general chemistry II that contains 10 multiple choice questions testing knowledge of intermolecular forces, phase changes, concentrations, vapor pressure, and nomenclature. It asks about the forces between molecules, which substance experiences only dispersion forces, the process of molecules sticking to a surface, the energy required to expand a liquid's surface area, the vapor pressure at the normal boiling point, the concentration of nitrate ions in a solution, the direct change of a solid to a gas, and the phase changes of water freezing and drying and frost forming. It concludes by listing the names and symbols of 10 chemical substances and compounds.

1. GENERAL CHEMISTRY-II (1412)
S.I. # 9
1. London dispersion force is the attractive force between: _________
a. an ion and a permanent dipole
b. an instantaneous dipole and an induced dipole
c. two permanent dipoles
d. two molecules with hydrogen bonded to the oxygen atom
e. any of the above
2. Which of the following has dispersion forces as its only intermolecular force?
__________
a. CH4 b. HCl c. C6H13NH2 d. NaCl e. CH3Cl
3. The process of a substance sticking to the surface of another is called_________
a. Absorption b. Diffusion c. Effusion d. Adsorption e. coagulation
4. _________ is the energy required to expand the survace area of a liquid by a unit
amount of area.
a. Viscosity b. Surface tension c. Volatility d. Meniscus e. Capillary action
5. The vapor pressure of any substance at its normal boiling point is ______
a. 1 Pa b. 1 torr c. 1 atm d. equal to atmospheric pressure
e. equal to the vapor pressure of water
6. The concentration of nitrate ion in a solution that contains 0.900 M aluminum
nitrate is __________ M.
a. 0.900 b. 0.450 c. 0.300 d. 2.70 e. 1.80
7.The direct conversion of a solid to a gas is called ______E________.
a. fusion b. vaporization c. condensation d. boiling e. sublination

2. 8. Name the phase transition in each of the following situations and indicate
whether it is exothermic or endothermic.
a. when water is cooled, it turns to ice.
b. wet clothes dry on a warm summer day
c. frost appears on a window on a cold winter day.
NOMENCLATURE!!! Name/symbol
1. Methane
2. Sucrose
3. Dry Ice
4. Diamond
5. Quartz
6. Boron Nitride
7. SiC
8. CaF2
9. C3H8O
10. NH3