首页 | 本学科首页   官方微博 | 高级检索  
文章检索
  按 检索   检索词:      
出版年份:   被引次数:   他引次数: 提示:输入*表示无穷大
  收费全文   4篇
  免费   0篇
化学   4篇
  2021年   1篇
  2019年   3篇
排序方式: 共有4条查询结果,搜索用时 15 毫秒
1
1.
Starting from an example of how to extinguish a fire, this article illustrates how chemical dynamics plays a role in our life. It also introduces what is chemical dynamics and the contribution of Dutch chemist Jacobus H. van't Hoff to chemical dynamics. The horse racing analogy is used to illustrate how the amount of reactants, energy, catalysts and other factors affect the chemical reaction rate.  相似文献   
2.
This paper mainly introduces the role of isotopes in exploring the origin of life and related principles. In addition, by reviewing the discovery history of isotopes and summarizing the contributions of major scientists, we hope to show the general process of science developments to the public.  相似文献   
3.
李娇  骆睿昊  金谷 《化学教育》2021,42(24):44-49
介绍了一个自主设计实验“测定磁介质铁路客票铁的含量”,该实验设计选取生活中熟悉又“陌生”的铁路客票为研究对象,以经典验证型实验“无汞盐法测全铁”为理论和实验基础,学生自行查阅文献、设计实验方案、分析讨论方案,再进行具体实验探究,分析实验结果,并撰写小论文。该教学实验项目的实施能有效促进理论知识体系和实验操作技能的深度融合,提高学生的创新能力和综合素质。  相似文献   
4.
This is a popular science article introducing the chemical knowledge contained in the search and use of colors. From the different aspects of architectural, textile dyeing and paints, three examples are chosen to reveal the chemical principles behind. Humanistic story and science interpretations are combined to reflect the close connection between chemistry and human life.  相似文献   
1
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号