A:碘单质受热易升华,用加热法可以分离高锰酸钾和碘单质的混合物
B:分液时,分液漏斗内的上下层液体应分别都从下口放出
C:向溴水中加入苯,充分振荡后静置,上层无色,下层橙红色
D:配制100 g10%的CuSO4溶液,称取10 g硫酸铜固体溶于90 g水中
— Leonardo didn't win an Oscar __________ he acted in The Revenant《荒野猎人》.
— Yeah. It was hard for him to realize this dream, but he never gave up.
①怒吼吧,黄河!____
②那壶口瀑布的百丈烟云,不正是与洪水搏斗、杀出生路的大禹精神吗?____
③____
白铁皮在发生析氢腐蚀时有0.2mol电子转移,下列说法正确的是( )