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全日制普通高级中学教科书（试验本）化学（必修）第一册学生分组实验钠与氧气的反应，我们按其步骤做过多次，也用蒸发皿做过多次，实验效果并不好。反应后的生成物与水反应、用余烬的火柴梗检验不出氧气，我们分析有以下三个原因：其一是钠在燃烧时氧气不足，大部分生成氧化?
Full-time Ordinary High School Textbooks (Test Book) Chemistry (Required) Book 1 Student Grouping Experiments The reaction between sodium and oxygen was performed several times according to its steps. It was also done several times with an evaporating dish. The results of the experiment were not good. After reaction, the product reacts with water, and no oxygen is detected by the matchstick of the rest. We have analyzed the following three reasons: First, the lack of oxygen in the combustion of sodium, most of which generate oxidation?