理化的化學是問題急 - 酒精
By Dorothy
at 2011-04-30T00:00
at 2011-04-30T00:00
Table of Contents
有題目上寫說酒精的化學式是由3種原子組成,含五個氫原子,但不可以說是由9個原子組成,為甚麼?那二氧化碳呢?碳酸鈣呢?請大家幫我解答一下
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酒精
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By Queena
at 2011-04-30T10:19
at 2011-04-30T10:19
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at 2011-05-03T00:06
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at 2011-05-02T21:35
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