Another student got a precipitate upon addition of aqueous BaCl2 to a sample of an anion unknown. The precipitate dissolved in HNO3, along with effervescence. Upon addition of 3M H2SO4 to another fresh sample, a colorless, odorless gas was produced. When AgNO3 was added to a third fresh sample of the unknown, a white precipitate formed which dissolved, with bubbling, upon addition of HNO3. What anion was present in the sample?
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Another student got a precipitate upon addition of aqueous BaCl2 to a sample of an anion unknown. Th...
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