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化学酸碱指示剂中的酚酞遇碱明明是显紫色或粉色，为什么非要说成显红色 知乎 Template






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tomski化学酸碱指示剂中的酚酞遇碱明明是显紫色或粉色，为什么非要说成显红色 知乎 coloring
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使用酚酞指示剂的几个现象的解释？ 知乎 sketch template
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为什么酚酞可以用作酸碱指示剂？ 知乎 sketch template
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为什么酚酞可以用作酸碱指示剂？ 知乎 sketch template
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自制酸碱指示剂的初步探究 参考 sketch template
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同学们在探究碱溶液与酚酞溶液作用的实验时现了一个意外现象氢氧化钠溶液中滴入酚酞溶液溶液变成了红色但是一会儿红色就消失了为此某化学 sketch template
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酚酞是白色结晶在空气中稳定几乎不溶于水常用做酸碱指示剂其结构简式如图1从结构上分析酚酞可看作df．a．烯烃 B．芳香烃 C．醇 sketch template