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某兴趣小组的同学按课本进行的一个化学实验如图1所示，在进行实验时，同学们闻到一股难闻的刺激性气�，于是对原实验重新进行了设计（如图2所示 Template






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tomski某兴趣小组的同学按课本进行的一个化学实验如图1所示，在进行实验时，同学们闻到一股难闻的刺激性气�，于是对原实验重新进行了设计（如图2所示 coloring
view template
某兴趣小组的同学按课本进行的一个化学实验如图1所示，在进行实验时，同学们闻到一股难闻的刺激性气，于是对原实验重新进行了设计（如图2所示 sketch template
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某校化学研究性学习小组探究气体制取的实验原理与方法．1甲同学将课本的基础知识进行整理如下图请你帮助他完成相关内容．制取气体所需药品装置 sketch template
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题目学探究是学习化学重要而有效的学习方法某校化学兴趣小组的同学做实验盛有量NaOH溶液的试管中通入CO2未看到明显的实验现象 sketch template
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某化学兴趣小组对“空气中氧气含量的测定”展开探究． 实验回顾实验室常用红磷燃烧的方法测定空气中氧气的含量如图1、图2，红磷燃烧的符号 sketch template
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某校化学兴趣小组的同学利用下列装置进行实验装置 实验目的1用高锰酸钾制取一瓶氧气做细铁丝燃烧的实验 2粗略测定加热2g高锰酸钾 sketch template
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某化学兴趣小组的同学进行粗盐提纯实验流程如图1操作依次为 ．2实验结束后该化学兴趣小组的同学计算了精盐产率若结果偏低 sketch template
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题目某化学兴趣小组的同学按图示装置验证氢氧化钠的化学性质实验步骤Ⅰ关闭K1K2将注射器内的液体注入装置A中的锥形瓶内Ⅱ打开 sketch template
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某校化学兴趣小组的同学根据实验室提供的仪器和药品在老师的指导下从如图中选择装置进行了氧气的制备实验．1写出仪器a的名称 ．2甲同学 sketch template
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化学兴趣小组的同学进行了“测定空气中氧气的含量”的探究实验。（1）红磷燃烧的文字表达式为 。（2）实验探究步骤Ⅰ、将仪器按如图1装置连接好 sketch template
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某研究性学习小组对中和反应进行探究请你参与实验实验1证明酸和碱生了反应稀盐酸和NaOH溶液混合没有明显现象小丽同学按图1进行实验 sketch template
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化学兴趣小组的同学进行了“测定空气中氧气的含量”的探究实验。（1）红磷燃烧的文字表达式为 。（2）实验探究步骤Ⅰ、将仪器按如图1装置连接好 sketch template
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某兴趣小组活动中同学们按图1装置对“可燃物燃烧的条件 进行探究．在探究过程中大家对磷燃烧生成的大量白烟是否危害人体健康提出问．查阅资料 sketch template
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题目某兴趣小组的同学为探究食物中储存的能量从“苹果花生仁核桃仁芹菜 中选取“花生仁和核桃仁 作为实验材料按如下实验装置进行试验 sketch template
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28．某兴趣小组活动中同学们按图1装置对“可燃物燃烧的条件 进行探究探究过程中大家对磷燃烧生成的大量白烟是否危害人体健康提出问 sketch template
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实验室开放日某化学兴趣小组的同学在老师的指导下进行了“自选仪器设计实验 的活动．实验室准备的仪器如图所示1认真同学一眼就认出仪器B是 sketch template
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某化学兴趣小组的同学利用下图所示实验装置进行实验 A 请按要求填空 1利用B装置可制取的气体有 2ACE相连后的装置可 sketch template
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某同学按如图所示的实验装置进行了如下实验将浸有酚酞溶液的棉花团在形铁丝上制成“花 在玻璃片上滴几滴浓氨水罩上大烧杯过一会儿使 sketch template
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27．学校化学兴趣小组的同学对一瓶溶液进行分析初步确定它是含有同种阴离子的MN的混合溶液继续分析的步骤如下 请根据上述实验过程及现象 sketch template
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Na2O2是常见的氧化剂某化学小组的同学欲通过以下实验确定炭粉与Na2O2反应的产物．实验步骤Ⅰ．按如图所示装置组装仪器并检查装置气密 sketch template
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某校学兴趣小组的同学利用如图所示装置进行实验．实验目的粗略测定加热2g高锰酸钾样品所收集到的氧气体积．1仪器认识写出仪器的名称 sketch template
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某校化学兴趣小组的同学根据实验室提供的仪器和药品在老师的指导下从图中选择装置进行了氧气的制备实验．1写出仪器a的名称锥形瓶．2甲 sketch template
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某校化学兴趣小组的同学利用如图所示装置进行实验．实验目的用高锰酸钾制取一瓶氧气粗略测定加热2g高锰酸钾所收集到的氧气体积．仪器认识 sketch template
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题目某校化学兴趣小组就空气中氧气的含量进行实验探究集体讨论1讨论后同学们认为应该选择 A蜡烛 B红磷 C铁粉该反应的文字 sketch template
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某校化学研究性学习小组探究气体制取的实验原理与方法．1甲同学将课本的基础知识进行整理如图请你帮助他完成相关内容．制取气体所需要品装置连接 sketch template
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某校化学兴趣小组的同学在阅读资料时现18世纪末法国学家拉瓦锡曾经做了一个实验让水蒸气通过一根烧红的枪管生成了一种气体．同学们对这个 sketch template
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某校化学兴趣小组的同学在阅读资料时现18世纪末法国学家拉瓦锡曾经做了这样 个实验让水蒸气通过一根烧红的枪管生成了一种气体．同学们对 sketch template
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某化学兴趣小组的同学对空气中氧气含量的测定实验进行探究1如上图所示装置和药品进行实验待红磷燃烧熄灭装置冷却后打开止水夹后看到 2 sketch template