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一、问题的提出很多复习资料中,在总结CO_2与物质反应规律时,都认为CO_2少量生成碳酸的正盐;CO_2过量生成碳酸的酸式盐。笔者认为此规律存在多处值得商榷的地方。CO_2是典型的酸性氧化物,CO_2对应的酸是二元弱酸,其对应的盐有正盐和酸式盐之分。如,少量CO_2与NaOH溶液反应的方程式为CO_2+
First, the problem raised A lot of review information, summed up the law of CO_2 and material reactions, that a small amount of carbon dioxide generated positive carbon dioxide; CO_2 excessive acid carbonate acid. I believe there are many places where this law is questionable. CO 2 is a typical acidic oxide, CO 2 corresponding acid is a binary weak acid, the corresponding salts have positive salt and acid salt points. For example, a small amount of CO2 and NaOH solution reaction equation is CO2