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高一化学开学第一课PPT《走近化学》:从化学是什么到高中化学怎么学

  • 2026-09-20 23:37:30
高一化学开学第一课PPT《走近化学》:从化学是什么到高中化学怎么学
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课件介绍

化学是在宏观、微观水平上研究物质的组成、结构、性质、转化及其应用的基础自然科学。它源自生活和生产实践，并随着人类社会的进步而不断发展。将宏观与微观联系起来研究物质及其变化是化学的特点和魅力

17世纪中叶以后，化学开始走上以科学实验为基础的发展道路。在后来的200多年里逐渐形成了独立的学科体系。1661年提出元素的概念，标志着近代化学的诞生。1774年提出燃烧的氧化学说，使近代化学取得了革命性的进展。1803年提出原子学说，为近代化学的发展奠定了坚实的基础。1811年提出分子学说，使人们对物质构成的认识发展到一个新的阶段。1869年发现元素周期律，使化学的研究变得有规律可循。

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01课件预览图片

获取方法地球号：小琴老师（Artemis222）

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  1. CONNECT:[ UseTime:0.000789s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001027s ]
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  8. SELECT * FROM `article` WHERE `id` = 552459 LIMIT 1 [ RunTime:0.000353s ]
  9. UPDATE `article` SET `lasttime` = 1790399490 WHERE `id` = 552459 [ RunTime:0.001374s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000301s ]
  11. SELECT * FROM `article` WHERE `id` < 552459 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000397s ]
  12. SELECT * FROM `article` WHERE `id` > 552459 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000353s ]
  13. SELECT * FROM `article` WHERE `id` < 552459 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000476s ]
  14. SELECT * FROM `article` WHERE `id` < 552459 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000535s ]
  15. SELECT * FROM `article` WHERE `id` < 552459 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000508s ]
0.075290s