Generally, the solubility of gases in liquids increases with
a. decreasing temperature and increasing pressure.
b. increasing temperature and decreasing pressure.
c. decreasing temperature and decreasing pressure.
d. increasing temperature and increasing pressure.
[Ques. 2] The lithosphere is
a. a collection of plates separated by oceans.
b. a collection of close-fitting plates.
c. viscous, flowing magma.
d. a solid, unbroken, spherical shell.
[Ques. 3] In a supersaturated solution,
a. the solvent has become the solute.
b. the normal solubility is exceeded.
c. more solute than solvent is present.
d. the dissolved and undissolved solute are in equilibrium.
[Ques. 4] The radius of Earth's mantle is about
a. 870 km.
b. 2900 km.
c. 1050 km.
d. 5800 km.
[Ques. 5] An equilibrium between solute dissolving and solute crystallizing is characteristic of which of the following solution types?
a. Saturated
b. Unsaturated
c. Supersaturated
d. Concentrated
[Ques. 6] Earth's outer core is
a. liquid.
b. part solid and part liquid.
c. solid.
d. frozen.
[Ques. 7] Homogeneous mixtures are
a. heterogeneous mixtures.
b. compounds.
c. nonuniform mixtures.
d. solutions.
[Ques. 8] Earth's inner core is
a. liquid.
b. part solid and part liquid.
c. solid.
d. molten.
[Ques. 9] The element potassium should produce compounds most similar to those of
a. Tc.
b. Na.
c. Al.
d. Sr.
[Ques. 10] Earth's core is
a. liquid.
b. part solid and part liquid.
c. solid.
d. molten.
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