【简答题】A strange thing about humans is their capacity for blind rage. Rage is presumably an emotion resulting from survival instinct, but the surprising thing about it is that we do not deploy it against oth...
【简答题】硫代硫酸钠(Na 2 S 2 O 3 )可由亚硫酸钠和硫粉通过化合反应制得。已知:Na 2 S 2 O 3 在酸性溶液中不能稳定存在;硫代硫酸钠与碘反应的离子方程式为:2S 2 O 3 2- +I 2 →S 4 O 6 2- +2I - 。 (Ⅰ)制备Na 2 S 2 O 3 ·5H 2 O 打开K 1 ,关闭K 2 ,向放有铜片的圆底烧瓶中加入足量浓硫酸,加热。圆底烧瓶中发生反应的化学方程式是 ...
【简答题】You see, our government is reluctant to approve of credit. If D/A is possible, it will help ease the licensing problem. If not, would documents against payment be better? ( )