用英语描述镁与水反应

发布网友 发布时间：2022-05-02 20:38

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热心网友 时间：2022-06-26 23:45

Magnesium metals are not affected by water at room temperature. Magnesium generally is a slow-reacting element, but reactivity increases with oxygen levels. Furthermore, magnesium reacts with water vapor to magnesium hydroxide and hydrogen gas:

Mg (s) + 2H2O(g) -> Mg(OH)2(aq) + H2(g)

Magnesium fires cannot be extinguished by water. Magnesium continues to burn after oxygen is depleted. It than reacts with nitrogen from air to form magnesium nitride (Mg3N2). When attempts are made to extinguish magnesium fires with water, magnesium aggressively reacts with hydrogen gas. To prevent any damage, a magnesium fire must be covered in sand.
An example of a magnesium compound is magnesium phosphide (Mg3P2), an odorous, grey solid. When this compound comes in contact with water or moist air, it is decomposed and phosphine (PH3) is formed. This is a toxic compound, and it is also very flammable in air.
镁金属在室温下并不都受水的影响。镁元素一般进行的是慢反应，但随氧含量的上升其反应加快。此外，镁与水蒸气生成氢氧化镁和氢气反应：
Mg（S）+ 2H2O（G）-> Mg（OH）2（aq）+ H2（G）
镁火灾不能用水扑灭。待氧气耗尽后镁会继续燃烧。它与空气中的氮气反应生成氮化镁（Mg3N2）。当试图用水扑灭镁火时，镁和氢气反应剧烈。为了防止损伤，镁火必须由砂覆盖来扑灭。
镁化物的一个例子是磷化镁（mg3p2），一种有气味的灰色固体。当该化合物与水或潮湿空气接触，它会被分解形成磷化氢（PH3）。这是一种有毒的化合物，同时它在空气中非常易燃。
（在一个网站上看到的一篇英语文章，截取的中间相关一段，并且简要翻译了一下，楼主满意，请采纳下吧，谢谢~ 另附一网址：http://www.lenntech.com/periodic/water/magnesium/magnesium-and-water.htm）

热心网友 时间：2022-06-26 23:46

你就是让我用中文给你描述我也不会啊！+_+