【简答题】室温下,在1L乙二胺溶液中,溶有0.010mol的[Cu(NH2)4]2+,主要生成[Cu(en)2]2+,由实验测得平衡时,乙二胺的浓度为0.054mol.L-1,求平衡时溶液中Cu2+和[Cu(en)2]2+的浓度。
【判断题】[Cu(en)2]Cl2的名称是 ,中心离子是en。
【简答题】Showing some sense of humor can be a(n) _______ way to deal with some stressful situation A) effective B) efficient C) favorable D) favorite
【单选题】混悬剂中使微粒Zeta电位降低的电解质是
【单选题】混悬剂中使微粒Zeta电位降低的电解质是
【简答题】KTB-84-130表示空调板构件长度为 mm,宽度为 mm。
【单选题】混悬剂中使微粒Zeta电位降低的电解质是
【单选题】I f companie s fro m foreig n countrie s buil d an d operat e factorie s i n China , the n China’ s productivity
A.
an d th e wage s o f Chines e worker s increase.
B.
increases but the wages of Chinese workers decrease.
C.
decreases but the wages of Chinese workers increase.
D.
and the wages of Chinese workers decrease.
【判断题】在配离子稳定性比较中,[Cu(NH3)4]2+> [Cu(en)2]2+。