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Suggest tests which could be used to distinguish among NO, N2O5, and NO2.
Suggest tests which could be used to distinguish among NO, N2O5, and NO2.
提问人:网友anonymity
发布时间:2022-01-06
Suggest tests which could be used to distinguish among NO, N2O5, and NO2.
A. (2)自发(1)不自发
B. (1)和(2)都不自发
C. (1)自发(2)不自发
D. (1)和(2)都自发
从本章内容预测在Cl2,Br2,或I2中,哪种元素可以从它们的X-溶液置换出单质卤素?也就是说,Br2+2I-→2Br-+I2反应可以发生吗?Br2+2Cl-→2Br-+Cl2可以发生吗?
水溶液中SO2作为还原剂还原(a)KMnO4溶液到MnSO4;(b)K2Cr2O7的酸性溶液到Cr3+离子;(C)Hg(NO3)2水溶液到金属汞。写出这些反应的方程式。
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