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南宁市2026年初中学业水平考试理化实验操作性考试知识要点及评定记录(学生用)化学科-课题5:金属的化学性质

  • 2026-06-11 05:07:52
南宁市2026年初中学业水平考试理化实验操作性考试知识要点及评定记录(学生用)化学科-课题5:金属的化学性质

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南宁市2026年初中学业水平考试理化实验

操作性考试知识要点及评定记录（学生用）

化学科

课题5：金属的化学性质

实验报告

实验内容

实验现象

分析与判断

1．铜和氧气的反应

取一块铜片，观察其颜色。用坩埚钳夹住铜片，放在酒精灯火焰上加热

铜片表面由

色变色

化学方程式：

2．金属和酸的反应

向2支洁净的试管中分别放入锌粒、铜片，然后各加入2-3mL稀盐酸，观察现象

装锌粒的试管内

装铜片的试管内

金属的活动性：

锌铜（填“＞”或“＜”）

3．铁和盐溶液的反应

取一根洁净的试管，向试管中加入2-3mL的硫酸铜溶液，小心地加入一根用砂纸打磨光亮的铁丝，静置

铁丝表面出现

化学方程式：

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南宁市2026年初中学业水平考试理化实验操作性考试知识要点及评定记录(学生用)化学科-课题1:粗盐中难溶性杂质的去除

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  138. /yingpanguazai/ssd/ssd1/www/d.460.net.cn/vendor/topthink/think-template/src/template/contract/DriverInterface.php ( 0.86 KB )
  139. /yingpanguazai/ssd/ssd1/www/d.460.net.cn/runtime/temp/d9f0991a7dd66afa499551bd49d930d7.php ( 11.98 KB )
  140. /yingpanguazai/ssd/ssd1/www/d.460.net.cn/vendor/topthink/think-trace/src/Html.php ( 4.42 KB )
  1. CONNECT:[ UseTime:0.000688s ] mysql:host=127.0.0.1;port=3306;dbname=d460;charset=utf8mb4
  2. SHOW FULL COLUMNS FROM `fenlei` [ RunTime:0.000879s ]
  3. SELECT * FROM `fenlei` WHERE `fid` = 0 [ RunTime:0.000369s ]
  4. SELECT * FROM `fenlei` WHERE `fid` = 63 [ RunTime:0.000268s ]
  5. SHOW FULL COLUMNS FROM `set` [ RunTime:0.000505s ]
  6. SELECT * FROM `set` [ RunTime:0.000199s ]
  7. SHOW FULL COLUMNS FROM `article` [ RunTime:0.000789s ]
  8. SELECT * FROM `article` WHERE `id` = 498556 LIMIT 1 [ RunTime:0.000534s ]
  9. UPDATE `article` SET `lasttime` = 1781282289 WHERE `id` = 498556 [ RunTime:0.002520s ]
  10. SELECT * FROM `fenlei` WHERE `id` = 64 LIMIT 1 [ RunTime:0.000299s ]
  11. SELECT * FROM `article` WHERE `id` < 498556 ORDER BY `id` DESC LIMIT 1 [ RunTime:0.000450s ]
  12. SELECT * FROM `article` WHERE `id` > 498556 ORDER BY `id` ASC LIMIT 1 [ RunTime:0.000388s ]
  13. SELECT * FROM `article` WHERE `id` < 498556 ORDER BY `id` DESC LIMIT 10 [ RunTime:0.004891s ]
  14. SELECT * FROM `article` WHERE `id` < 498556 ORDER BY `id` DESC LIMIT 10,10 [ RunTime:0.003895s ]
  15. SELECT * FROM `article` WHERE `id` < 498556 ORDER BY `id` DESC LIMIT 20,10 [ RunTime:0.001697s ]
0.090611s