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某化学兴趣小组为了探究二氧化碳性质设计了以下三个实验实验一1如a进行实验所示能观察到两支蜡烛aa熄灭．a从下而上 B从上而下 C Template






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tomski某化学兴趣小组为了探究二氧化碳性质设计了以下三个实验实验一1如a进行实验所示能观察到两支蜡烛aa熄灭．a从下而上 b从上而下 c coloring
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某学习小组对二氧化碳展开了一系列探究。（一）验证CO2的性质。如图甲所示为验证CO2性质的实验装置。实验时，持续通入CO2，步骤Ⅰ：打开K1 sketch template
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某化学兴趣小组为了探究二氧化碳性质设计了以下三个实验实验一1如A进行实验所示能观察到两支蜡烛AA熄灭．A从下而上 B从上而下 C 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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二氧化碳性质【相关词 随意优惠券 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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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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题目为了探究二氧化碳与氢氧化钠生反应河南省实验中学化学兴趣小组进行了如甲所示实验并利用了数字化实验手段进行了探究在用排空气法收集到 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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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．1同学们 sketch template
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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为甲 软料瓶变瘪乙 “瓶吞鸡蛋 ． 1 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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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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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装配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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Ⅰ．某化学兴趣小组用以下装置探究SO2的某些化学性质．1装置乙的作用是吸收多余的SO2．2若X为品红溶液观察到溶液褪色说明SO2 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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2015南宁中考某化学兴趣小组的同学对实验室制取二氧化碳及相关性质进行一系列的探究活动。 1气体制取 按如图1所示的制取装置进行实验 sketch template
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二氧化碳的性质实验改进说课稿 中国期刊 sketch template
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22．某化学兴趣小组的同学为探究二氧化硫的化学性质设计了如下图所示的装置 请回答下列问题 1铜和浓硫酸反应的化学方程式为 2 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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某化学小组对二氧化碳和二氧化硫的有关性质进行了相应探究实验请根据所学知识及下面实验回答问题1溶解性对比实验将已收集满的二氧化碳和 sketch template
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某化学兴趣小组对电化学问题进行了实验探究．Ⅰ．利用图1装置探究属的防护措施实验现象是锌电极不断溶解铁电极表面有气泡产生．1写出负极的 sketch template
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某兴趣小组在老师的带领下对“二氧化碳的化学性质 进行探究．1同学用如图Ⅰ所示装置对二氧化碳的灭火实验进行研究他们观察到的现象是下面的蜡烛 sketch template
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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装配了 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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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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某化学兴趣小组选用如图所示装置进行CO2制取和性质实验请你根据所学知识依图回答下列问题 1仪器的名称为 1收集量CO2气体 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于是采用市售的小苏打样品进行了 sketch template
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某合作学习小组为探究二氧化碳的化学性质做了以下实验他们取一张用石蕊染成紫色的干燥的试纸放到已通入二氧化碳的水中观察到试纸变成红色由此 sketch template
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某化学兴趣小组的同学为探究二氧化硫的化学性质设计了如图所示的装置．请回答下列问题．1铜和浓硫酸反应的化学方程式为 ．2B瓶中盛有品红 sketch template
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某兴趣小组的同学利用下图装置研究二氧化碳的性质．仪器的固定装置已经省略1A装置用于实验室制取二氧化碳．2实验开始后关闭K2打开 sketch template
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探究与实验题某化学兴趣小组设计的实验装置如图所示既可用于制取气体又可用于验证物质性质．1写出仪器的名称A分液漏斗B锥形瓶．2当 sketch template
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29．某同学为了探究二氧化碳的性质他们做了如下图所示的四个实验 1通过上述实验活动你获知二氧化碳有哪些性质请归纳． ——青夏 sketch template
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某化学兴趣小组设计了如图所示的装置对纯碱Na2CO3和小苏打NaHCO3两种固体进行实验探究1写出甲丙两种仪器的名称 sketch template