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第十单元重难点视频讲解--常见的碱(PPT可下载)

  • 2026-11-07 01:01:54
第十单元重难点视频讲解--常见的碱(PPT可下载)

厨房清洁剂能去除油污，熟石灰能改良酸性土壤，这些现象背后都离不开“碱”的身影。

今天，我们将聚焦“常见的碱”，深入剖析氢氧化钠、氢氧化钙等物质的特性——从它们的物理性质到化学性质，辨析易混淆的知识点。

跟着老师的思路，你将清晰掌握碱的通性与特性，轻松突破学习难点，为后续酸碱盐的综合应用打下坚实基础。现在，让我们一起揭开“碱”的神秘面纱吧！

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通过网盘分享的文件：第十单元课题1、2.pptx

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【48页PPT】 化工行业新一代“ 智能工厂”解决方案(附下载)

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  1. CONNECT:[ UseTime:0.000734s ] mysql:host=172.18.0.4;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000978s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000488s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000356s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000576s ]
  6. SELECT * FROM `set` [ RunTime:0.000290s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000596s ]
  8. SELECT * FROM `article` WHERE `id` = 490876 LIMIT 1 [ RunTime:0.000362s ]
  9. UPDATE `article` SET `lasttime` = 1794360249 WHERE `id` = 490876 [ RunTime:0.001319s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000337s ]
  11. SELECT * FROM `article` WHERE `id` < 490876 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000437s ]
  12. SELECT * FROM `article` WHERE `id` > 490876 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000402s ]
  13. SELECT * FROM `article` WHERE `id` < 490876 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.000570s ]
  14. SELECT * FROM `article` WHERE `id` < 490876 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.000574s ]
  15. SELECT * FROM `article` WHERE `id` < 490876 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001470s ]
0.089671s