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56. Solving a chemistry problem
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16. It is known that chromium (III) chloride hexahydrate exists in different forms depending on the synthesis conditions. One of them forms aqueous solutions of dark green color, the second - bluish-green, the third - violet. From a dark green solution, using an aqueous solution of silver nitrate, only 1/3 of the total chlorine contained in the original compound can be precipitated in the form of silver chloride ions. From the bluish-green solution, 2/3 of the chlorine precipitates, and from the violet solution, all the chlorine passes into silver chloride. What is the reason for this behavior of different forms of chromium (III) chloride hexahydrate?
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