9 . E
Solvation is the interaction between the solute and the solvent molecules; it is often the
development of a cagelike network of a solution’s solvent molecules about a molecule or ion
of the solute.10 . D
Deposition is the conversion of a gas directly into a solid without passing through the liquid
state.
11 . B
Condensation is the conversion of a gas into a liquid state, an instance of which you can see on
a pot lid during the boiling of water.
12 . A
Sublimation is the conversion of a solid into a gas without going through a liquid phase.
13 . B
A neutron is a subatomic particle with a charge of zero and a mass of 1 amu. Neutrons can be
found in all nuclei, except for one of the hydrogen isotopes.
14 . A
A proton is a subatomic particle with a charge of +1 and mass of 1 amu. It is found in all atomic
nuclei.
15 . C
An electron is a subatomic particle with a charge of −1 and negligible weight. It is found around
the nucleus.
16 . C
See the explanation to question 15.
17 . B
Metalloids’ properties lie in between those of metals and nonmetals and are found between
them on the periodic table. They are semiconductors in that they do conduct electricity, but
not very well. They lie in a diagonal from B to At.