(A) they must occupy different orbitals
the Heisenberg uncertainty principle predicts that they must periodically jump to
the 3p sublevel(B)
(C) the oxidation state of the atom must be 2+
(D) they must have opposite spins
(E) they are oppositely charged64 . In order to make a buffer solution, a weak monoprotic acid could be added to
(A) another acid
(B) another base
(C) its conjugate base
(D) its conjugate acid
(E) a strong base65 . How will the equilibrium of the following reaction be affected if the temperature is
increased?
N 2 (g) + 3H 2 (g) 2NH 3 (g) ∆H = –30 kJ/mol(A) It will be shifted to the right.
(B) It will be shifted to the left.
(C) It will be unaffected.
(D) The effect on the equilibrium cannot be determined without more information.
(E) None of the above66 . For a sample of an ideal gas of fixed weight and at a fixed temperature,
I. the volume varies directly with the pressure exerted on it
II. the volume varies inversely with the pressure exerted on it
III. the pressure varies directly with the density of the gas