某同学设计了一套验证碳酸具有酸性而二氧化碳没有酸性的实验.他首先用紫色石蕊试液浸泡滤纸晒干后折成纸花然后按如图所示分别进行1紫色石蕊 Template




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tomski某同学设计了一套验证碳酸具有酸性而二氧化碳没有酸性的实验.他首先用紫色石蕊试液浸泡滤纸晒干后折成纸花然后按如图所示分别进行1紫色石蕊 coloring