当前位置：首页>学习资料>人教版化学九年级下全册同步学习视频(含课件/教案/练习题/学习任务单/)

人教版化学九年级下全册同步学习视频(含课件/教案/练习题/学习任务单/)

  • 2026-05-27 02:22:01
人教版化学九年级下全册同步学习视频(含课件/教案/练习题/学习任务单/)
为了方便家长辅导孩子学习及教师备课，冬冬老师为大家带来人教版化学教材同步预习微课栏目，欢迎大家分享+收藏哦！
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永久学习所有课文
九年级下册目录
1
第八单元 金属和金属材料
课题1 金属材料
课题2 金属的化学性质
课题3 金属资源的利用和保护
2
第九单元 溶液
课题1 溶液及其应用（第1课时）
课题1 溶液及其应用（第2课时）
课题2 溶解度（第1课时）
课题2 溶解度（第2课时）
课题3 溶质的质量分数
3
第十单元  常见的酸、碱、盐 
课题1 溶液的酸碱性
课题2 常见的酸和碱 （第1课时）
课题2 常见的酸和碱 （第2课时）
课题2 常见的酸和碱（第3课时）
课题2 常见的酸和碱（第4课时）
课题3 常见的盐 第1课时
课题3 常见的盐 第2课时
课题3 常见的盐 第3课时
4
第十一单元 化学与社会
课题1 化学与人体健康 第1课时
课题1 化学与人体健康 第2课时
课题2 化学与可持续发展 第1课时
课题2 化学与可持续发展 第2课时
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  1. CONNECT:[ UseTime:0.000981s ] mysql:host=127.0.0.1;port=3306;dbname=no_67808;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.001617s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000747s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.014370s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.001330s ]
  6. SELECT * FROM `set` [ RunTime:0.000579s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.001763s ]
  8. SELECT * FROM `article` WHERE `id` = 490967 LIMIT 1 [ RunTime:0.001167s ]
  9. UPDATE `article` SET `lasttime` = 1779827839 WHERE `id` = 490967 [ RunTime:0.021940s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.001044s ]
  11. SELECT * FROM `article` WHERE `id` < 490967 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.001240s ]
  12. SELECT * FROM `article` WHERE `id` > 490967 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.001242s ]
  13. SELECT * FROM `article` WHERE `id` < 490967 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.003326s ]
  14. SELECT * FROM `article` WHERE `id` < 490967 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.014469s ]
  15. SELECT * FROM `article` WHERE `id` < 490967 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.016341s ]
0.180065s