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To Recognize the Solubility and Color of Common Chemicals by Spot Tests Author: Chyh-Chyun Chou, Pei-Hua Lee(Department of Chemistry College of Sciences)

Abstract：

By a spot test－dropping thirteen reagents generally available in laboratory on white paper separately, the different color of precipitates will be observed through each other's reaction. This experiment is proper for the qualitative discussion of solubility in the high school textbook. It can be done easily and quickly. Besides, only simple equipment and a few chemicals are required.

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