Question: Separate samples of a solution of an unknown soluble ionic compound are treated with KCl , Na 2 SO . , and NaOH. A Precipitate

Separate samples of a solution of an unknown soluble ionic compound are treated with KCl,Na2SO., and NaOH. A Precipitate forms only when Na2SO, is added. Which cations could be present in the unknown soluble ionic compound?

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