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高一化学第二章碱金属第二节《钠的化合物》中过氧化钠与水反应生成氧气的同时放出热量的实验是分两步做的。教师在做(实验2-6)时成功率不高,棉花不
In the second section of “Chemical Compounds” in the second section of “Sodium Compounds”, the experiment of releasing heat by reacting sodium peroxide with water to generate oxygen is performed in two steps. Teachers did not have a high success rate when they did (Experiment 2-6). Cotton is not