已知氧化性BrO3->ClO3->Cl2>IO3->I2。现将饱和氯水逐滴滴入KI淀粉溶液中至过量。 (1)可观察到的现象是: ①______________________________________________________________ ②______________________________________________________________ (2)写出有关的离子方程式: ①_______________________________________________________________ ②_______________________________________________________________ |