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1. Name a sinlge reagent that can be used to distinguish a) AgCl(s) and Ag2CO3(s) and b) NaI(aq) and NaCl(aq).

2. A white, crystalline solid dissolved in water forming a pale blue solution. A precipitate resulted when the solution was treated with 6M sodium hydroxide. The precipitate dissolved in ammonia, giving a royal blue solution. A second portion of the solid was dissolved in water. Treatment of a portion of that solution with silver nitrate resulted in a white precipitate. The precipitate dissolved in ammonia. Identify the origional salt, giving its chemical formula. Explain your resoning briefly.

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Category:- Chemistry
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