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“酸碱盐”是九年级化学的重要内容,人教版教材在第十单元中首先从生活和实验中常见的酸和碱出发,介绍了几种常见酸和碱的性质及用途,并说明酸和碱
The “acid-base salt” is an important part of the ninth-grade chemistry. In the tenth unit, the teaching material of the People’s Education Edition starts with the common acids and bases in life and experiments, and introduces the properties and uses of several common acids and bases. And explain acid and alkali