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碳酸根和碳酸氢根同时存在时氢离子优先和谁反应？为什么？

2025-03-17 01:39:26

推荐回答（3个）

回答1：

碳酸氢根先反应,因为碳酸氢根的碱性比碳酸根强，更易结合氢离子
HCO3- + H+ = H2O + CO2!　CO3 2- + H+ = HCO3 -

回答2：

先和碳酸根反应，生成碳酸氢根
当碳酸根完全转换成碳酸氢根时，氢离子再和碳酸氢根反应

回答3：

碳酸氢根优先与H+反应生成CO2

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