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氯化氫和水的化学方程式？

返回打印发布时间：2023/6/19 点击：10812

氯化氫气体可以溶于水，但氯化氫气体不与水反应，所以没有氯化氫气体与水反应的化学方程式。另外，氯化氫和盐酸具有相同的化学式，因为盐酸是氯化氫的水溶液。氯化氫在水中电离，HCl=H++Cl-，这是电离方程式。

氯化氫，分子式HCl，常温下为无色气体，遇空气中的水蒸气形成白色盐酸雾。氯化氫分子由一个氯原子和一个氢原子组成，是一种无色、有刺激性气味的气体。其水溶液俗称盐酸，学名盐酸。相对分子质量为36.46。氯化氫极易溶于水。在0°C时，1体积的水可以溶解约500体积的氯化氫。

氯化氫是一种具有腐蚀性的不燃气体，不与水反应但易溶于水，常以盐酸烟雾的形式存在于空气中。溶于乙醇和乙醚，也溶于许多其他有机物；易溶于水，在25℃和1个大气压下，1体积的水能溶解503体积的氯化氫气体。干燥的氯化氫在化学上非常惰性。碱金属和碱土金属在氯化氫中易燃，钠燃烧时放出明亮的黄色火焰。

氯化氫气体溶于水生成盐酸，打开药瓶时，常在空气中形成带有小水滴的盐酸酸雾。工业盐酸常呈淡黄色，主要是由于氯化铁的存在。盐酸存在的常见测试是氨水，它与氯化氫反应形成白色氯化铵颗粒。氯化氫具有很强的偶极子并与其他偶极子形成氢键。

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