钠与氧气反应实验是高中化学人教版必修1第47页的内容,该实验概念错误,现象模糊,在产物方面也难以界定。笔者现对其进行如下分析。一、原实验不足1.实验概念之误。教材由将钠放在石棉网上加热改为把一小块钠放在坩埚里加热。我们知道,钠是在敞开的空间里燃烧,不能这样简单地默认是钠与氧气反应。教材编写者在这里犯了一个知识性错误, The reaction of sodium with oxygen is the content of the High School Chemistry PEP Edition 1, p. 47, which is an erroneous concept, obscure phenomenon and difficult to define in terms of product. The author now carries out the following analysis. First, the original lack of experimental 1. Experimental concept of error. Textbook by the sodium on the asbestos heating instead of a small piece of sodium in the crucible heating. We know that sodium is burnt in an open space and can not simply, by default, react with oxygen. Textbook writers made a knowledgeable mistake here,