某同学用如图所示装置验证二氧化碳与水的反应.已知氮气的密度比空气的小该装置气密性良好锥形瓶中放入的是用石蕊溶液染成紫色的干燥纸花.具体 Template




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tomski某同学用如图所示装置验证二氧化碳与水的反应.已知氮气的密度比空气的小该装置气密性良好锥形瓶中放入的是用石蕊溶液染成紫色的干燥纸花.具体 coloring