Question: A student dissolved a compound in water and added hydrochloric acid. No precipitate formed. Next she bubbled H2S into this solution, but again no precipitate

A student dissolved a compound in water and added hydrochloric acid. No precipitate formed. Next she bubbled H2S into this solution, but again no precipitate formed. However, when she made the solution basic with ammonia and bubbled in H2S, a precipitate formed. Which of the following are possible as the cation in the compound?
a. Ag+
b. Ca2+
c. Mn+
d. Cd2+

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a Ag is not possible because no precipitate formed with HCl b Ca 2 is not possible if the c... View full answer

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