失败的化学实验引发思考中学化学实验室里,老师正在给学生演示化学反应的实验。试管里是苯酚,倒入少量的溴水会发生什么情况?学生们睁大了眼睛。老师小心翼翼地倒入溴水,可试管里并没发生什么变化,等一会儿,还是没反应,这是怎么回事?化学实验老师无奈地对学生 Failure of chemical experiments lead to thinking High school chemistry laboratory, the teacher is giving students a demonstration of chemical reaction experiments. The test tube is phenol, poured into a small amount of bromine water what happens? Students eyes wide open. The teacher carefully into the bromine water, the test tube did not happen what changes, while waiting, or no response, how is this going? Chemistry experiment teacher helpless students