純物質和混合物的分辨 - 酒精
By Andy
at 2009-08-25T00:00
at 2009-08-25T00:00
Table of Contents
各位大大小弟在學理化時一直分不清楚純物質和混合物的差別...我知道純物質是組成性質都固定然後混合物是組成性質不固定可是題目如果單給你一個名詞然後叫你分辨這樣不就很慘就完全不知道也無從判斷起純物質和混合物了請做做看下面一題:請分類:墨水銅粗鹽汽水米酒精鹽以上六種物質屬於純物��
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酒精
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By Emily
at 2009-08-29T05:12
at 2009-08-29T05:12
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at 2009-08-28T03:04
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at 2009-08-29T14:11
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