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下面是某兴趣小组同学进行实验探究时的实验装置图请认真观察结合所学知识作答1 甲乙一组实验探究的问题是 其中图中的 起对照作用 2 Template






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sketch 5008
sketch 4834 Aayla Secura by Nînâ Yämâhä
sketch 1452 donara
sketch 4987
sketch 3572 Hate mondays by Malyi Link
sketch 3804
sketch 1226 the man
sketch 270

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sketch 3804
sketch 5205
sketch 3429 Another try of Miku xD
sketch 1199
sketch 3138 Papa Smurf by Courtney Spragg
sketch 3076 Angel by Burak Turan
sketch 3242 Jolteon by Välë Chäpärrö Järämïllö
sketch 4995





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tomski下面是某兴趣小组同学进行实验探究时的实验装置图请认真观察结合所学知识作答1 甲乙一组实验探究的问题是 其中图中的 coloring
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某学习小组的同学对实验室制取二氧化碳及二氧化碳的性质进行如下两个方面的探究。Ⅰ二氧化碳的制取第一小组用如图所示的装置制取二氧化碳并测定生成 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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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校化学兴趣小组的同学在探究属的化学性质时现铜与稀硫酸在常温或加热的条件下均不反应．那么铜与浓硫酸能否生反应他们就铜与浓硫酸是否 sketch template
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下面是某兴趣小组同学进行实验探究时的实验装置图请认真观察结合所学知识作答1 甲乙一组实验探究的问题是 其中图中的 起对照作用 2 sketch template
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下面所示是某校化学兴趣小组的同学探究物质燃烧条件的实验过程 实验1在酒精灯上点燃木条和玻璃棒 实验2分别点燃两支小蜡烛将其中一支蜡烛 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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下面是某兴趣小组同学进行实验探究时的实验装置图请认真观察结合所学知识作答1 甲乙一组实验探究的问题是 其中图中的 起对照作用 2 sketch template
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百度教育 sketch template
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1某学兴趣小组的同学设计了如下三个实验装置来验证质量守恒定律其中只有A装置能用来验证质量守恒定律BC装置则不能否定BC装置的 sketch template
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某化学兴趣小组在按图1装置做属钠在空气中燃烧的实验时观察到产物不仅仅有淡黄色的固体生成还有量的色颗粒产生该小组对色颗粒进行了如下 sketch template
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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 sketch template
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某兴趣小组的同学对水的组成进行了实验探究。【提出问题水是由什么组成的【查阅资料通过电解水和点燃氢气证明燃烧产物的方法均可证明水的组成 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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某兴趣小组同学按照下图实验装置进行实验请回答相关问题1你认为设计该实验是为了测定空气中氧气的含量2实验过程中下列操作不妥的是 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已知Na2SO3 H2SO4浓Na2SO4 SO2 H2O请回答下列问题 sketch template
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下面是某兴趣小组同学进行实验探究时的实验装置图请认真观察结合所学知识作答1 甲乙一组实验探究的问题是 其中图中的 起对照作用 2 sketch template
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某班同学按下图所示的实验探究质量守恒定律1同学们先按图1的方式实验将盐酸加到碳酸钠粉末中生反应的化学方程式为 该实验中大家进行了 sketch template
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如图某兴趣小组同学做了以下实验．请回答有关 问题．1该实验的目的是探究分子的运动2A烧杯中的现象是酚酞试液由无色变成红色3为了 sketch template
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某化学小组同学用如图所示实验探究质量守恒定律．1充分反应冷却后天平仍然平衡的是 ．2由上述实验可知在化学反应前后一定不变的是 sketch template
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某兴趣小组对物质的性质和成分进行相关探究．兴趣小组同学用氧化铜与足量的碳粉利用图甲所示装置进行实验对生成气体的成分进行探究．提出问题生成 sketch template
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某实验小组同学为了探究铜与浓硫酸的反应进行如下实验．实验1铜与浓硫酸反应实验装置如图所示．实验步骤先连接好装置检验气密性加入试剂 sketch template
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某化学兴趣小组在做完石灰石和稀盐酸制取二氧化碳的实验后对反应后剩余溶液的溶质成分产生了兴趣他们进行了以下实验探究．提出猜想实验室制取 sketch template
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某兴趣小组同学以“探究CO2与NaOH溶液的反应”为主题开展项目式学习，兴趣小组同学将CO2通入NaOH溶液中，现无明显现象，为了证明该反应 sketch template
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为检验二氧化碳气体中是否混有一氧化碳某课外兴趣小组的同学设计了如下图所示的实验装置根据下图装置回答问题1实验开始时是先通一氧化碳 sketch template
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某兴趣小组探究分子的特性时做了以下四组实验．实验一已知碱性溶液能使酚酞变红而氨水碱性打开盛装浓氨水的试剂瓶时能够闻到强烈刺激性 sketch template
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某化学兴趣小组在做完石灰石和稀盐酸制取二氧化碳的实验后对反应后剩余溶液的溶质成分产生了兴趣他们进行了以下实验探究．提出猜想实验室制取 sketch template
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某学校化学兴趣小组同学在学习了制取氧气这一节内容后现在实验室里用5%H2O2溶液加热制O2用带火星的木条检验木条很难复燃．同学们经过 sketch template
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题目取氯酸钾和二氧化锰的混合物30g加热一段时间后冷却冷却后称得剩余固体质量为204g将剩余固体加入一定量的水中充分搅拌后过滤 sketch template
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为探究分子运动现象，兴趣小组进行了以下实验。（1）图1是按课本进行的实验，一段时间后，A烧杯中的实验现象是 ，说明分子具有的性质是 。（2）图 sketch template
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下面是某兴趣小组同学进行实验探究时的实验装置图请认真观察结合所学知识作答1 甲乙一组实验探究的问题是 其中图中的 起对照作用 2 sketch template
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下面是某兴趣小组同学进行实验探究时的实验装置图请认真观察结合所学知识作答1 甲乙一组实验探究的问题是 其中图中的 起对照作用 2 sketch template
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水是生之源某化学兴趣小组对水进行了探究．1图为进行电解水实验的装置图据此回答C试管中收集到的气体是氧气图中B端为电源的负极该 sketch template
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题目某化学兴趣小组欲探究含硫物质的性质用下面的装置和药品探究亚硫酸与次氯酸的酸性强弱1装置连接顺序为 用字母表示F中反应的 sketch template
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某兴趣小组同学按照如图实验装置进行实验请回答相关问题1你认为设计该实验是为了测定空气中氧气的含量2实验过程中下列操作正确的顺序 sketch template