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英语翻译Sentences from the Organic Chemistry textbook are as fol

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英语翻译
Sentences from the Organic Chemistry textbook are as follows.
Plus(+) and minus(-) signs are often used to indicate the presence of formal charges on atoms in molecules.Assigning formal charges to specific atoms is a bookkeeping technique that makes if possible to keep track of the valence electrons around an atom and offers some clues about chemical reactivity.
英语翻译Sentences from the Organic Chemistry textbook are as fol
从服刑的有机化学教科书的内容如下.
加号( + )和减号( -)的迹象,经常被用来表明,在场的正式指控对原子的分子.指派正式收费,以具体的原子是一个簿记技术,使可能的话,保持轨道的价电子围绕着原子,并提供了一些线索的化学反应.