初三化学复分解反应问题http://www.jyeoo.com/chemistry/ques/detail/6c34c48f-fa76-40b2-bd85-970140541b1d请问这道题为什么要加酚酞,反应前有NaOH,如果会反应也还会有BaOH,那加酚酞的意义是什么?
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![初三化学复分解反应问题http://www.jyeoo.com/chemistry/ques/detail/6c34c48f-fa76-40b2-bd85-970140541b1d请问这道题为什么要加酚酞,反应前有NaOH,如果会反应也还会有BaOH,那加酚酞的意义是什么?](/uploads/image/z/6668264-56-4.jpg?t=%E5%88%9D%E4%B8%89%E5%8C%96%E5%AD%A6%E5%A4%8D%E5%88%86%E8%A7%A3%E5%8F%8D%E5%BA%94%E9%97%AE%E9%A2%98http%3A%2F%2Fwww.jyeoo.com%2Fchemistry%2Fques%2Fdetail%2F6c34c48f-fa76-40b2-bd85-970140541b1d%E8%AF%B7%E9%97%AE%E8%BF%99%E9%81%93%E9%A2%98%E4%B8%BA%E4%BB%80%E4%B9%88%E8%A6%81%E5%8A%A0%E9%85%9A%E9%85%9E%2C%E5%8F%8D%E5%BA%94%E5%89%8D%E6%9C%89NaOH%2C%E5%A6%82%E6%9E%9C%E4%BC%9A%E5%8F%8D%E5%BA%94%E4%B9%9F%E8%BF%98%E4%BC%9A%E6%9C%89BaOH%2C%E9%82%A3%E5%8A%A0%E9%85%9A%E9%85%9E%E7%9A%84%E6%84%8F%E4%B9%89%E6%98%AF%E4%BB%80%E4%B9%88%3F)
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