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碳酸的化合價
碳酸的化合價
更新时间:2024-11-16 03:05:35

  碳酸,氫元素的化合價為正一價,碳元素的化合價為正四價,氧元素的化合價為負二價。整個碳酸不顯化合價。

  碳酸是一種二元弱酸,電離常數都很小。碳酸會使紫色石蕊試液變成梅紅色,碳酸顯酸性,酸可使紫色石蕊變色。二氧化碳在溶液中大部分是以微弱結合的水合物形式存在,隻有一小部分形成碳酸。

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