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>高中化学必修二ppt | 14 化学反应与热能
高中化学必修二ppt | 14 化学反应与热能
2026-04-09 15:47:46
高中化学必修二ppt | 14 化学反应与热能
前言:以下是本人林含键课堂教学课件分享(前面已分享了必修二13个课件和必修一55个课时的课件合集
【高中化学必修一ppt】55 期末模拟卷讲评
)。课件获取方式请看文末指引(禁止未授权的二次传播或商用,原创不易,感谢理解!
这一节开始第六章的学习,第六章是选必一的基础,先通过几个常见的反应了解吸热反应和放热反应,再学习能量变化的原因,从宏观的物质总能量再到微观的化学键键能变化,重点掌握图像表征方法
。
初步了解第六章的学习内容。
用熟悉的例子,自热火锅作为引入。
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镁条和稀盐酸的放热实验,这个相对比较熟悉。
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通过课堂演示这个较为陌生实验,让学生知道氨气的刺激性气味,感官上认识该反应是吸热反应。
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总结吸放热反应的类型,以及注意事项。
理解能量变化的宏观原因,借助图像帮忙理解。
课堂练习,总在辨析吸放热反应,以及物质总能量的概念。
进入微观探析能量变化的本质原因,先引入初中和必修一课本对化学反应的理解。
从数据上进行分析讲解,借助交互性网页来帮助学生理解化学键与能量的关系。
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图像表征合成氯化氢的反应。
总结吸放热反应的图像。
教材练习。重点讲解第4题。
感谢你的宝贵时间,若你认可我的课件内容,欢迎点个小爱心,敬请继续关注:
如需获取课件(可编辑修改,包括图片视频素材),按下列步骤操作:
步骤一:点击下方“喜欢作者”赞赏7元以上(课件制作不易,感谢理解)
步骤二:完成步骤一的基础上,在公众号对话框留言“必二14”,我看到后会回复下载链接。
若想要必修一整套的课件或是未来必修二整本书的课件(网盘链接),用来修改使用,可加我微信询价购买,扫码添加为好友备注“地区+姓名”。
相关链接:
高中化学必修二ppt | 13 第五章整理与提升
高中化学必修二ppt | 12 无机非金属材料课时练习
高中化学必修二ppt | 11 无机非金属材料
高中化学必修二ppt | 10 硝酸和酸雨及防治
高中化学必修二ppt | 09 铵根离子的检验、氨气的制备和硝酸
高中化学必修二ppt | 08 氨和铵盐
高中化学必修二ppt | 07 氮气和氮的氧化物
高中化学必修二ppt | 06 硫及其化合物课时练习
高中化学必修二ppt | 05 粗盐提纯及不同价态含硫物质的转化
高中化学必修二ppt | 04 硫酸根离子的检验
高中化学必修二ppt | 03 硫酸
高中化学必修二ppt | 02 二氧化硫的化学性质
高中化学必修二ppt | 01 硫和二氧化硫
必修一合集:
【高中化学必修一ppt】55 期末模拟卷讲评
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CONNECT:[ UseTime:0.000414s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000551s ]
SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.003926s ]
SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.002441s ]
SHOW FULL COLUMNS FROM `set` [ RunTime:0.000650s ]
SELECT * FROM `set` [ RunTime:0.000208s ]
SHOW FULL COLUMNS FROM `article` [ RunTime:0.000621s ]
SELECT * FROM `article` WHERE `id` = 490767 LIMIT 1 [ RunTime:0.000472s ]
UPDATE `article` SET `lasttime` = 1775840091 WHERE `id` = 490767 [ RunTime:0.006785s ]
SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.002224s ]
SELECT * FROM `article` WHERE `id` < 490767 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000566s ]
SELECT * FROM `article` WHERE `id` > 490767 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000454s ]
SELECT * FROM `article` WHERE `id` < 490767 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000825s ]
SELECT * FROM `article` WHERE `id` < 490767 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.002650s ]
SELECT * FROM `article` WHERE `id` < 490767 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.002661s ]
0.118929s