4. Which of the following statements is true?
(A) If a substance is soluble, it must be an electrolyte.
(B) The bonds between hydrogen and oxygen within a water molecule can be characterized as
intermolecular forces.
(C) The buffered solution will not change its pH very much even if a strong base is added.
(D) The total energy of the universe increases, while the entropy increases.
(E) none of these
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