A:加水稀释后CuSO4溶液颜色变浅
B:观察MgSO4溶液的颜色
C:CuSO4溶液加适量NaOH溶液,振荡后静置,上层清液颜色消失
D:CuSO4溶液加适量BaCl2溶液,振荡后静置,上层清液颜色未消失
关于晶体和非晶体,下列说法中正确的是( )
— Jim's mother dislikes cartoons in the Past, but now she likes to watch them with little Jim.
— Oh, just as the saying goes, .