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所在平台: Udemy |
课程主页: https://www.udemy.com/course/some-basic-concepts-of-chemistry-k/
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**课程名称：化学基础概念** **课程简介：** 本课程将深入浅出地介绍化学的基本概念，涵盖物质的定义、分类以及五种重要的化学反应定律： 1. **质量守恒定律：** 阐述物质在化学反应中既不会生成也不会消失，其总质量保持不变。 2. **定比定律：** 说明化合物中的元素按固定的质量比例组成。 3. **倍数比例定律：** 解释当两种元素结合形成多种化合物时，其中一种元素与固定质量的另一种元素结合的比率是简单的整数倍。 4. **盖-吕萨克气体定律：** 阐述在恒定的压力和温度下，反应气体的体积成简单的整数比例关系。 5. **阿伏伽德罗定律：** 指出在相同的温度和压力下，相同体积的任何气体都含有相同数目的分子。 此外，课程还将详细讲解原子质量和分子质量的概念。原子质量描述了一个原子的质量是碳-12原子质量的十二分之一的多少倍，而分子质量则是将一种化合物的一个分子的质量与碳-12原子质量的十二分之一进行比较。 **学习目标：** 希望通过本课程，学生能够透彻理解化学基础概念，从而在考试中取得更好的成绩。本课程适合遵循任何教学大纲的学生学习。
In this course you will learn about the fundamental concepts of chemistry such as what is matter, how it is classified. You will also learn about five important laws of chemical combination.These are law of conservation of mass which states matter can neither be created mor destroyed, law of. Constant proportion which states that element in a compound present in fixed proportion by mass. law of multiple proportion states when two elements combine to form two or more elements them ratio of one of element combining in fixed proportion of the other element will be in simple whole number ratio, Gay Lussac' s law of gaseous volume states that when pressure & temperature of gas kept constant their volume will be constant & Avagadros law says equal volume of all gases at constant temperature & pressure contain equal number of molecules. In this course I have tried my level best to explain about atomic mass. Atomic mass tells how many times and atom of an element is heavier than one twelfth of c- 12.& molecular mass compares mass of one molecule of a compound with 1/12th of C-12.Hope students will understand the concept well and perform better in the exams. This course can be taken by students following any type of syllabus.
