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记得第一次切实触摸到高中化学教材的那一幕,最大的一个变化就是书中的内容增多了,理论性的文字看的眼花缭乱。高中化学必修一的内容作为高中化学的起始,只有充分掌握这本书的知识才能进行以后的学习,在这册书中最重要的一个知识点就是物质的量和摩尔质量,它是我们以后学习化学的基础。一、我们需要明确几个定义:1.什么是物质的量(n)物质的量是国际单位制中七个基本物理量之一。那我们为什么要学习物质的量,因为用物质的量可以衡量组成该物
I remember the first touch to the high school chemistry textbook scene, the biggest change is the content of the book increased, the theoretical text to see the dazzling. As a starting point for chemistry in high school, the content of chemistry compulsory one in senior high school can only be learned afterwards if the knowledge of this book is sufficient. The most important knowledge in this book is the quantity of matter and its molar mass. Learn the basics of chemistry. First, we need to define several definitions: 1. What is the amount of material (n) The amount of material is one of the seven basic physical quantities in the SI system. Then why do we learn the amount of matter, because the amount of material can measure the composition of the thing