我拿着衣服去领赏,一桌腾腾的饭菜摆在我的面前,我狼吞虎咽地吃着,爸爸却一直在拿着衬衫发呆,他本想教育我学好,谁知我把衣服搓干净了,他的计划泡汤了。后来,我从书上得知,盐的化学名叫氯化钠,是一种晶体,它不仅可以做调料,还可以除污渍。氯化钠与水溶合在一起具有漂白作用,能够除去衣服上的污渍。盐还是一种很好的家用灭火剂,食盐在高温火源下,可迅速分解为氧化钠、通过化学作用吸收燃烧中的自由基,抑制燃烧的进行,颗粒盐更是有效的灭火剂,因为颗粒含量较多,在高温下吸热膨胀,破坏了火苗的形态,同时发生吸热反应,稀释燃烧区的氧气浓度,所以能很快地灭火。
I took my clothes to receive the reward. A table of steaming food was placed in front of me. I was devouring it, but my father was dazed with his shirt. He wanted to teach me how to learn well. But I rubbed my clothes clean, and his plan was in vain. Later, I learned from the book that the chemical name of salt is sodium chloride, which is a crystal. It can not only be used as seasoning, but also can remove stains. Sodium chloride and water can be dissolved together to bleach and remove stains on clothes. Salt is also a good household fire extinguishing agent. Under the high temperature fire source, salt can be rapidly decomposed into sodium oxide, absorb the free radicals in the combustion through chemical action, and inhibit the combustion process. Particle salt is more effective fire extinguishing agent, because the particle content is more, it absorbs heat and expands at high temperature, destroys the shape of the fire, and at the same time, it generates heat absorption reaction to dilute the oxygen concentration in the combustion area, So it can put out the fire quickly.
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