25.有两个实验小组的同学为探究过氧化钠与二氧化硫的反应都用如下图所示的装置进行实验通入so2气体将带余烬的木条插入试管c中木条复燃 Template




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tomski25.有两个实验小组的同学为探究过氧化钠与二氧化硫的反应都用如下图所示的装置进行实验通入so2气体将带余烬的木条插入试管c中木条复燃 coloring