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ข้อคิดเห็นที่
1: http://en.wikipedia.org/wiki/Benedict's_reagent Benedict 's Reagent " Benedict 's reagent contains blue copper (II) ions ( Cu2+ ) which are reduced to copper (I) ( Cu+ ) . These are precipitated as red copper (I) oxide which is insoluble in water . " โดย: นักเคมี [21 มิ.ย. 2553 18:49] |