下列过程中只涉及物理变化的是a久置于空气中的烧碱b将熟石灰和氯化铵研磨c二氧化碳通入紫色的石蕊溶液d用酒精浸泡紫罗兰花自制酸碱指示剂 Template




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tomski下列过程中只涉及物理变化的是a久置于空气中的烧碱b将熟石灰和氯化铵研磨c二氧化碳通入紫色的石蕊溶液d用酒精浸泡紫罗兰花自制酸碱指示剂 coloring