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某化学兴趣小组用甲、乙两套装置如图3－3－3所示进行甲酸hcooh与甲醇ch3oh酯化反应的实验，回答以下问题： 图3－3－3 Template






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sketch 5209
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sketch 2434 Metallica
sketch 3670 Bugs Bunny by Jessica Column
sketch 5063 Super Meat Boy by Alexander Volodimirovich Danilchenko
sketch 5370 Requiem for the Phantom by Marita Amaya
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sketch 3076 Angel by Burak Turan
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sketch 2625 Dragon by sketchmaster
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sketch 3608 Skeleton king by Thania Arruda





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tomski某化学兴趣小组用甲、乙两套装置如图3－3－3所示进行甲酸hcooh与甲醇ch3oh酯化反应的实验，回答以下问题： 图3－3－3 coloring
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某化学兴趣小组用甲乙两套装置进行甲酸与甲醇CH3OH酯化反应的实验回答以下问题 1甲酸和甲醇进行酯化反应的化学方程式是 sketch template
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某化学兴趣小组用甲乙两套装置进行甲酸与甲醇CH3OH酯化反应的实验回答以下问题 1甲酸和甲醇进行酯化反应的化学方程式是 sketch template
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某化学兴趣小组用甲、乙两套装置如图3－3－3所示进行甲酸HCOOH与甲醇CH3OH酯化反应的实验，回答以下问题： 图3－3－3 sketch template
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某生物兴趣小组为探究一氧化碳对家鼠生活动是否有影响进行了以下实验选取两只大小年龄基本相同的家鼠分别放入如下图所示的甲乙两集气瓶中 sketch template
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为了探究物质在化学变化时参加反应的反应物总质量与生成物总质量是否相等．某校甲乙两个兴趣小组分别设计了如下的实验来验证自己的假设．实验方案 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．1甲乙两仪器的名称是分液漏斗圆底烧瓶．2ACE相连后的装置可用于制取Cl2 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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某化学兴趣小组用以下装置以环己醇制备环己烯 1制备粗品 将125mL环己醇加入试管A中再加入lmL浓硫酸匀后放入碎瓷片缓慢加热 sketch template
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某校化学兴趣小组，在实验室里用二氧化锰和浓盐酸在加热条件下制取氯气并进行有关氯气性质的实验探究如下图所示。 回答下列问题： 1从分液 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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化学兴趣小组用下图所示装置进行以下实验1收集一瓶二氧化碳打开止水夹 和 关闭 从分液漏斗装置A中加入足量的稀盐酸写出A中生 sketch template
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实验室可利用乙二醇铜或铜的化合物制备乙二醛右图是某兴趣小组设计的实验装置右边的反应装置相同而左边的气体生装置不同试管C中装有水试 sketch template
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某校化学兴趣小组在探究“酸碱盐的相关性质”时，做了如下实验（如图1），实验结束后，小组同学将两支试管中的废液同时倒入一个洁净的烧杯中（如图1所 sketch template
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某化学兴趣小组对生石灰与水反应是显放热反应进行了实验探究在除了用手触试管壁感觉热外还设计了下列几个可行性方案甲方案将温度计与盛放 sketch template
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化学兴趣小组为了探究化学实验室里的一种色粉末和一瓶标签破损的无色溶液可能是什么物质大胆猜想并设计试验进行验证 现问题当把色粉末与 sketch template
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题目某化学兴趣小组在实验室中进行化学实验按如图甲连接好线路现灯泡不亮按图乙连接好线路现灯泡亮由此得出的结论正确的是 A sketch template
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某化学兴趣小组在实验室制取漂白粉并探究氯气与石灰乳反应的条件和产物已知氯气和碱的反应为放热反应温度较高时氯气和碱还能生如下反应 sketch template
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题目某化学兴趣小组在实验室用除去表面氧化物的铁钉与浓硫酸共热制取SO2 并完成相关性质探究1有同学认为制得的SO2 中可能混有杂质 sketch template
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某化学兴趣小组为探究SO2的性质按如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仪器名称分别是分液漏斗分液漏斗 sketch template
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某化学兴趣小组用以下装置探究SO2的某些化学性质 1装置乙的作用是 2若X为品红溶液观察到溶液褪色说明SO2具有 若X为 sketch template
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某兴趣小组的同学用如图所示装置研究有关电化学的问题．当闭合该装置的电键时观察到电流表的指针生了偏转．请回答下列问题1甲装置的名称是 sketch template
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某化学兴趣小组用化学方法测定一种钢样品中铁的含量．同学们称取了114g钢样品投入装有200g稀盐酸的烧杯中．在化学反应过程中对烧杯进行了 sketch template
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29． 某校化学实验兴趣小组为了探究在实验室制备Cl2的过程中有水蒸气和HCl挥出来同时证明氯气的某些性质甲同学设计了如图所示的实验装置 sketch template
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某化学兴趣小组用如图所示装置进行探究性实验以验证产物中有乙烯生成且乙烯具有不饱和性．当温度迅速上升后可观察到试管中溴水褪色烧瓶中浓 sketch template
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某化学兴趣小组的同学用如图甲所示的装置制备二氧化碳． 1如图甲所示的装置的优点是 ． 2写出实验室制备二氧化碳的化学方程式 3 sketch template
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14．学习植物生理作用的知识后某兴趣小组设计如下实验进行验证请分析回答取盆栽牵牛花植株放在暗处一昼夜后将植株枝条上长势大小相同的三 sketch template
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某化学兴趣小组利用如图所示装置进行O2CO2的实验室制法和有关性质的研究．1写出图中编号仪器的名称锥形瓶．2甲同学使用A装置用 sketch template
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某校化学兴趣小组的同学探究可燃物质燃烧的条件探究如下1取一支大试管往里加2mL305%过氧化氢溶液2用镊子取一块白磷投入到 sketch template
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某化学兴趣小组为探究SO2的性质按如图Ⅰ所示装置进行实验．请回答下列问题1装置A中盛放亚硫酸钠的仪器名称是 其中生反应的化学方程式 sketch template
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某生物兴趣小组对“探究种子萌的外界条件 实验作了如下改进准备甲乙两个大玻璃杯中间各放两个隔板装置如图所示．甲乙玻璃杯的底部和 sketch template
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28．CO2是初中化学重点研究的气体之一某化学兴趣小组设计了如下实验来探究CO2的制取和性质 1该兴趣小组用干燥管烧杯铜等设计 sketch template