31 . The reaction of NaOH and H 2 SO 4 in water goes to completion because
(A) it is a neutralization reaction
(B) water is a strong electrolyte
(C) sodium sulfate quickly precipitates
(D) a volatile product is formed
(E) sulfuric acid is a very strong acid32 . Which of the following would be different in a ground state and an excited state neon
atom?
(A) The number of neutrons
(B) The number of electrons
(C) The atomic weight
(D) The electronic configuration
(E) Everything would remain the same.33 . The Ksp of Mg(OH) 2 in water is 1.2 × 10–11. If the Mg2+ concentration in an acid solution is
1.2 × 10–5 mol/L, what is the pH at which Mg(OH) 2 just begins to precipitate?
(A) 3
(B) 4
(C) 5
(D) 11
(E) 1234 . Which of the following states has the highest average translational kinetic energy?
(A) Solid
(B) Liquid
(C) Gas
(D) Colloid
(E) None of the above