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人教版高中化学必修1第四章第四节是氨、硫酸和硝酸的内容,其中关于硝酸的性质中涉及到铜与稀硝酸的反应,该反应生成了无色气体一氧化氮。新课改之前的旧教材中有该反应的演示实验,但在新教材中却没有这个实验,原因应该是该实验很难做成功,失败人教版普通高中教材化学的原因是装置中的空气很难被排除干净,一氧化氮气体遇到氧气就变成红棕色的二氧化氮气体。
People’s Education Edition High School Chemistry Compulsory 1 Chapter IV, Section IV is the contents of ammonia, sulfuric acid and nitric acid, of which the nature of nitric acid involves the reaction of copper and dilute nitric acid, which produces colorless gas nitric oxide. The new textbook before the new curriculum there is the reaction of the demonstration experiment, but in the new textbooks do not have this experiment, the reason should be difficult to do this experiment is successful, the failure of the PEP ordinary high school teaching chemistry is due to the air in the device Difficult to be excluded clean, nitric oxide gas becomes reddish brown nitrogen dioxide gas encountered.