【判断题】四硫氰 · 二氨合铬 (III) 酸铵的化学式为 NH 4 [Cr(SCN) 4 (NH 3 ) 2 ] 。
【简答题】写出下列配合物的化学式或名称 1 硫酸四氨合铜(II) 2 四硫氰 · 二氨合铬(III)酸铵 3 [Ag(NH 3 ) 2 ]OH 4 H 2 [SiF 6 ]
【单选题】What POS(词性)does the suffix(后缀)"-able" suggest?
【单选题】What does Lizzie Post say is new territory ?
A.
The effect of manners advice on the public .
B.
Cost of applying new technologies at home .
C.
The increasing use of home security devices .
D.
Etiquette around home security cameras .
【判断题】四(异硫氰酸根)·二氨合铬(III)酸铵的化学式为【图片】。