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某溶液可能含有Cl-、SO42-、CO32-、NH4+、Fe3+、Al3+和K+。取该溶液100mL,加入过量NaOH,加热,得到0.02mol气体,同时产生红褐色沉淀;过滤,洗涤,灼烧,得到1.6g固体;向上述滤液中加足量BaCl2溶液,得到4.66g不溶于盐酸的沉淀。由此可知原溶液中 A.至少存在5种离子 B.Clˉ一定存在,且c(Clˉ)≥0.4mol/L C...
让闭口油脂无处遁形! [doge] 【33】科颜氏 金盏花爽肤水40ml 这个爽肤水是可以搭配科颜氏的白泥一起用,可以清理黑头闭口 ①先把白泥涂抹到出油多的地方; ②大概8-10分钟这样,蘸水用指腹打圈按摩面部,...
Compare MT48LC4M32B2B5-7ITES:G by undefined vs K4M283233H-HN750 by undefined. View differences in part data attributes and features.