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15问答网 > 化学中酸和碱的中和指什么?(意思...)

化学中酸和碱的中和指什么?(意思...)

2025-03-30 15:41:47

推荐回答（5个）

回答1：

酸和碱相互作用生成水和盐的反应。
电解质氯化钠在水中完全离解，所以中和反应实质上是H+和OH-作用生成水的反应： H++OH-→H2O

强酸和强碱中和时，等当点的pH值为7；强酸与弱碱中和时，等当点的pH值小于 7；弱酸与强碱中和时，等当点的pH值大于7 。酸碱中和反应是否已经达到等当点，通常利用指示剂的变色作为标记。

回答2：

我不知道你问的是中学阶段的酸碱理论还是更为广泛的酸碱理论.
如果是中学阶段的,那么一楼的同学说的正确.

在广义的酸碱理论中包括路易斯酸碱理论和勃朗台酸碱理论.这两种理论中对酸和碱的定义有了变化.所有能提供质子(也就是H+)的就是酸,而所有能接受质子的都是碱.这个理论同样实用于狭义的酸碱理论,比如HCl和NaOH,前者提供H+,后者接受H+.所以酸碱中和也就是说质子和理论上等量的接受质子的物质反应.

回答3：

指H离子和OH离子中和生成水

回答4：

酸:含H离子
碱:含OH离子
中和:酸减中和

生成的不一定是中性,要看反应物的量,如果反应物适量就才可以生成中性

回答5：

即使显碱性，那也是盐

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