甲.銅;乙.食塩顆粒;丙.稀硫酸.......20點 - 酒精
By Wallis
at 2010-03-27T00:00
at 2010-03-27T00:00
Table of Contents
甲.銅;乙.食塩顆粒;丙.稀硫酸;丁.酒精;戊.葡萄糖水溶液;己.氫氧化鈉水溶液;庚.氫氧化鈣固體1.哪些可導電?2.哪些是電解質?3.哪些會使乾燥的藍色石蕊試紙變紅?4.哪些會使乾燥的紅色石蕊試紙變藍?5.哪些會使潮濕的藍色石蕊試紙變紅?6.哪些會使潮濕的紅色石蕊試紙變藍?請解答並說明
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酒精
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By Hazel
at 2010-03-29T02:21
at 2010-03-29T02:21
By Kristin
at 2010-03-27T04:01
at 2010-03-27T04:01
By Caitlin
at 2010-03-29T18:47
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