proportional to its pressure.8 . B
Charles’s law states that the volume of a gaseous sample at constant pressure is directly
proportional to absolute temperature.9 . C
Avogadro’s principle states that under the same conditions of temperature and pressure,
equal volumes of different gases will have the same number of molecules.10 . C
Ethanol, with its –OH group, has a covalent bond between atoms with different
electronegativities in which electron density is unevenly distributed, giving the bond both +
and – ends.
11 . A
CsCl is an ionic compound, with Cs donating an electron to Cl and the subsequent chemical
bond formed through the electrostatic interaction between the positive and negative ions.
12 . D
Butane, C 4 H 10 , is a molecule that exhibits no net separation of charges and therefore has no
net dipole moment.
13 . B
Argon is an element located in Group 0 (Group VIII) of the periodic table. These elements are
known as the noble or inert gases. They contain a full octet of valence electrons in their
outermost shell, and this electron configuration makes them the least reactive of the
elements.
14 . C
The acid dissociation constant (Ka) is the equilibrium constant that measures the degree of
dissociation for an acid under specific conditions.
15 . A
pH is a measure of the hydrogen ion content of an aqueous solution, and is defined as the
negative log of the hydrogen ion concentration.