Problem: You know that an unlabeled bottle contains a solution of one of the following: AgNO 3, CaCl2, or Al2(SO4)3. A friend suggests that you test a portion of the solution with Ba(NO 3)2 and then with NaCl solutions. Explain how these two tests together would be sufficient to determine which salt is present in the solution.

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You know that an unlabeled bottle contains a solution of one of the following: AgNO 3, CaCl2, or Al2(SO4)3. A friend suggests that you test a portion of the solution with Ba(NO 3)2 and then with NaCl solutions. Explain how these two tests together would be sufficient to determine which salt is present in the solution.