【简答题】X、Y、Z、W、R、Q六种短周期元素原子序数依次增大,Y、R、Q三种元素在周期表中相对位置如下: Y R Q 请填写下列空白: (1)若Y与Q形成的液体化合物是常见的重要有机溶剂.则Y、Q两种元素最高价氧化物对应的水化物酸性由强到弱的顺序是:______(用化学式表示). (2)若化合物WQ是海水中的主要成分.以石墨为电极电解WQ的水溶液,其阳极电极反应式为______. (3)若Z、R是同一主族...
【简答题】A.Get the university's approval in advance. B.Follow Susan's advice about traveling abroad. C.Take more French courses to improve his skills. D.Make inquiries about the requirements for teaching chemi...
【简答题】A.Get the university's approval in advance. B.Follow Susan's advice about traveling abroad. C.Take more French courses to improve his skills. D.Make inquiries about the requirements for teaching chemi...