某学校两个化学兴趣小组的同学分别做常见酸和碱与指示剂反应的实验.使用的试剂如图所示.实验后废液分别集中到各组的一个废液缸中并对废液进行检测 Template




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tomski某学校两个化学兴趣小组的同学分别做常见酸和碱与指示剂反应的实验.使用的试剂如图所示.实验后废液分别集中到各组的一个废液缸中并对废液进行检测 coloring