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高中化学必修二‖氮及其化合物PPT|第2课时

  • 2026-04-03 09:19:45
高中化学必修二‖氮及其化合物PPT|第2课时

❇️课件预览

❇️知识点总结

✅知识点1️⃣：氨

①：物理性质

②：氨的溶解性

③：氨的化学性质

✅知识点2️⃣：铵盐的性质与检验

①：化学性质

③：铵盐的检验

✅知识点3️⃣：氨气的实验室制备

❇️可编辑课件

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  1. CONNECT:[ UseTime:0.000531s ] mysql:host=127.0.0.1;port=3306;dbname=h_sjds;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000793s ]
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  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000686s ]
  6. SELECT * FROM `set` [ RunTime:0.000263s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000595s ]
  8. SELECT * FROM `article` WHERE `id` = 469022 LIMIT 1 [ RunTime:0.000390s ]
  9. UPDATE `article` SET `lasttime` = 1775314708 WHERE `id` = 469022 [ RunTime:0.000874s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000298s ]
  11. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000494s ]
  12. SELECT * FROM `article` WHERE `id` > 469022 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000474s ]
  13. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.001011s ]
  14. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.001186s ]
  15. SELECT * FROM `article` WHERE `id` < 469022 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.000925s ]
0.078413s