| "空气中氧气含量的测定"实验的改进 |
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| 引用本文： | 李德前."空气中氧气含量的测定"实验的改进[J].中国教育技术装备,2006(1):21-22,44. |
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| 作者姓名： | 李德前 |
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| 作者单位： | 怀远县实验中学,安徽,怀远,233400 |
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| 摘 要： | 分析了初中化学教材中“空气中氧气含量的测定”实验的不足之处．提出了几种改进方案．不仅提高了实验的精确度,而且现象直观,污染很小。
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| 关 键 词： | 氧气含量 测定实验 改进 |
| 文章编号： | 1671-489X（2006）01-0021-02 |
Improvement on the Experiment of " Determining Oxygen Content in the Air" |
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| Li Deqian.Improvement on the Experiment of " Determining Oxygen Content in the Air"[J].china educational technique & equipment,2006(1):21-22,44. |
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| Authors: | Li Deqian |
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| Institution: | Huaiyuan Campus Middle School,Huaiyuan,Anhui Province,China 233400 |
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| Abstract: | The writer analyzes the deficiency in the middle school chemical textbook,concerning the experiment of "mensurating oxygen contents in the air",and advances several betterments,which not only updates the precisinon but visual and has little pollution. |
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| Keywords: | oxygen contents mensurating experiment improvement |
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