試題詳解

29. A sample of a white solid is known to be NaHCO₃, AgNO₃, Na₂S, or CaBr₂. Which 0.1 M aqueous solution can be used to confirm the identity of the solid?
(A) NH3(aq)
(B) HCl(aq)
(C) NaOH(aq)
(D) KCl(aq)
(E) CH₃COOH(aq)