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某化学兴趣小组的同学在老师的指导下设计了如下实验装置进行气体制取和性质的探究请回答有关问题 1请写出图中标有字母a的仪器名称 Template






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sketch 4176 Eye by Jawad Kallou
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sketch 120 a pretty flower

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tomski某化学兴趣小组的同学在老师的指导下设计了如下实验装置进行气体制取和性质的探究请回答有关问题 1请写出图中标有字母a的仪器名称 coloring
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某化学兴趣小组的同学在老师的指导下设计了如下实验装置进行气体制取和性质的探究请回答有关问题 1请写出图中标有字母a的仪器名称 sketch template
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某化学兴趣小组的同学在老师的指导下利用如图所示装置进行实验探究活动．实验一装置A处玻璃管中盛放木炭探究可燃物燃烧的条件．I．打开K通入 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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某化学兴趣小组为探究SO2的性质，按下图所示装置进行实验。 请回答下列问题： 1装置A中盛放浓硫酸和亚硫酸钠的仪器名称分别是 、 ； 2 sketch template
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实验室开放日老师给某化学兴趣小组一包氧化铜和铜的混合物样品要求兴趣小组测定样品中氧化铜的质量分数．该组同学随机称取若干克样品于烧杯中再把 sketch template
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题目实验室开放日某化学兴趣小组的同学在老师的指导下设计了如图实验装置进行气体制取的探究请回答问题1写出图中标有字母的仪器名称 sketch template
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某中学化学兴趣小组在老师的指导下实验提供了如下器材和若干化学药品进行气体的制备和性质的探究邀请你一同参加．1写出图中标号a仪器的 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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题目在研究“酸碱中和反应 时某兴趣小组同学想证明稀盐酸与氢氧化钠溶液混合后是否生了化学反应进行了如下探究1在盛有氢氧化钠溶液的 sketch template
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3．某化学兴趣小组的同学在老师的指导下正确完成如图所示两个实验．查阅资料得知铜和氧气在加热的条件下反应生成色固体氧化铜．1实验一中 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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某化学兴趣小组的同学对一份固体样品进行了探究．通过实验已确定该样品由氧化铁和铁粉混合而成．他们称取了136g固体样品用图1所示的装置进行 sketch template
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某化学兴趣小组的同学在学习了纯碱Na2CO3的性质后联想到家中蒸制馒头时常用的物质小苏打NaHCO3于是探究了碳酸氢钠的化学性质 sketch template
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某化学兴趣小组的同学利用如图所示实验装置进行实验．请按要求填空1利用B装置可制取的气体有 ．2ACE相连后的装置可用于制取Cl2 sketch template
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题目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从下图中选择装置进行了氧气的制备实验1甲同学把过氧化氢溶液缓缓 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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某化学兴趣小组在化学实验室现一瓶没有标签的淡黄色粉末同学们对探究该粉末产生浓厚兴趣并在老师的指导下进行探究活动提出问题这种淡黄色 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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1某化学兴趣小组的同学按照课本上的实验装置做“测定空气中氧气的体积分数 实验如下图A所示 如果实验非常成功能观察到的现象是 sketch template
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某化学兴趣小组的同学往氢氧化钠溶液中滴加稀盐酸时没有看到明显现象．氢氧化钠与盐酸是否生了化学反应酸与碱生中和反应会放出热量．甲乙丙 sketch template
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化学兴趣小组的同学在老师的指导下正确完成如下图所示两个实验已知所用实验装置气密性良好实验一中的样品取自于市售的某品牌“暖宝 成分为铁粉 sketch template
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某中学化学兴趣小组在老师的指导下实验提供了如下器材和若干化学药品进行气体的制备和性质的探究邀请你一同参加．1仪器a的名称集气瓶 sketch template
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某化学兴趣小组同学设计了多组实验装置测定空气中氧气的含量．1甲同学设计图1装置进行实验．实验过程中观察到烧杯中的水被倒吸入集气瓶中其原因 sketch template
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某自然学兴趣小组同学在实验室现一个有趣的元件R1从说明书知道元件R1的电阻值与其两端的电压值有关．在老师的指导下同学们得到了元件 sketch template
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某化学兴趣小组的同学利用如图所示实验装置进行实验． 1甲乙两仪器的名称是分液漏斗圆底烧瓶．2利用B装置可制取的气体有H2NO 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在老师的指导下利用如图所示装置进行实验探究活动．实验一装置A处玻璃管中盛放木炭探究可燃物燃烧的条件．I．打开K通入 sketch template
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某化学兴趣小组的同学在老师的指导下利用如图所示装置进行实验探究活动．实验一装置A处玻璃管中盛放木炭探究可燃物燃烧的条件．I．打开K通入 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几种气体的制备实验1写出指定仪器的名称 2 sketch template
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“化学反应条件的控制是实验灵魂 中考资源某校化学兴趣小组在老师指导下进行了“影响双氧水分解因素 的实验中考资源请你帮助回答下列问题 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从下图中选择装置进行了氧气的制备实验1甲同学把过氧化氢溶液缓缓加入盛有 sketch template
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