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现行高中化学课本中介绍氨与氧气以铂为催化剂反应生成一氧化氮和水,一氧化氮继而氧化成棕色的二氧化氮:在该演示实验的现象应是:铂丝发红,在锥形瓶里可看到棕色的二氧化氮。但事实上难以实现上述现象。难点是:
Current high school chemistry textbook introduces ammonia and oxygen to platinum as a catalyst for the reaction of nitric oxide and water, nitric oxide and then oxidized to brown nitrogen dioxide: The phenomenon in the demonstration experiment should be: platinum wire red, tapered The bottle can see the brown nitrogen dioxide. But in fact difficult to achieve the above phenomenon. Difficulties are: