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April 21, 2015

Homework Help: Chemistry

Posted by David on Sunday, April 12, 2009 at 8:54pm.

The experiment that I did in lab consisted of performing a qualitative analysis of group 1 and 2 cations and anions. The first thing that I did was to add 5 drops of 3M HCl, centrifuge it, and to observe whether a precipitate would form. It did and in the flowchart it signified that it was a Group I cation. My question is why do Group I cations form precipitates when mixed with HCl? (in this experiment)

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