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Chemistry, 12.03.2021 18:00 trent45

Need 1
A solution of a Solid A is mixed with a few drops of barium nitrate solution
and a white precipitate forms. A dilute hydrochloric acid is then added
(with a little heat) and the white precipitate does not dissolve. Which of the
following anions was in the original solid (Solid A)? *

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