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31．某校学生小组为探究乙酸碳酸和苯酚的酸性强弱并证明乙酸为弱酸进行下述实验 I．探究乙酸碳酸和苯酚的酸性强弱关系 该校学生设计了 Template






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sketch 4882 Monsters University by John Davis
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sketch 3742 Homer by Koes Maung
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sketch 5018 Owl by Komlós László
sketch 3683 Hellboy by Loai Issa

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sketch 4685 Dave Mustaine by Erika Ishikawa
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sketch 3071 Metallica - Kill &#;Em All by Dayana Aleman
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tomski31．某校学生小组为探究乙酸碳酸和苯酚的酸性强弱并证明乙酸为弱酸进行下述实验 i．探究乙酸碳酸和苯酚的酸性强弱关系 该校学生设计了 coloring
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31．某校学生小组为探究乙酸碳酸和苯酚的酸性强弱并证明乙酸为弱酸进行下述实验 I．探究乙酸碳酸和苯酚的酸性强弱关系 该校学生设计了 sketch template
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31．某校学生小组为探究乙酸碳酸和苯酚的酸性强弱并证明乙酸为弱酸进行下述实验 I．探究乙酸碳酸和苯酚的酸性强弱关系 该校学生设计了 sketch template
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某中学研究性学习小组为探究碳酸钠和碳酸氢钠两种物质的性质制法和用途查阅资料并进行实验．资料卡片1碳酸钠Na2CO3俗名苏打 sketch template
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某实验小组同学欲探究SO2的性质并测定空气中SO2的体积分数。他们设计了如图所示的实验装置请你参与探究并回答问题。1使用倒扣漏斗的作用 sketch template
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某校化学活动小组准备探究气体的测定和数据处理方法． 【提出问题如何利用石灰石与稀盐酸反应来测定生成CO2的质量和体积，并处理数据．【实验设计 sketch template
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某校化学兴趣小组探究SO2与FeCl3溶液的反应所用装置如图所示．1该小组同学预测SO2与FeCl3溶液反应的现象为溶液由棕黄色变成浅 sketch template
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为探究足量锌与184mol•L 1浓硫酸的反应某研究小组进行如下实验．实验I反应生成物成分的定性探究取650g锌粒与98%的浓 sketch template
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题目某校学生为探究苯与溴生反应的原理用如图装置进行实验根据相关知识回答下列问题1装置Ⅱ中生反应的化学方程式为 2实验开始 sketch template
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20．某校学生活动小组设计如图所示装置探究工业制硫酸接触室中反应产物并测定此条件下二氧化硫的转化率实验时装置D锥形瓶中溶液产生白色沉淀 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研究性小组为探究铜跟浓 硫酸的反应情况设计了如图所示装置进行有关实验实验中他们取64g铜片与12mL 18mol/L浓硫酸放在圆底烧瓶 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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某学习小组在探究碳酸钠的化学性质时做了下图所示的三个实验．1实验一探究碳酸钠溶液的酸碱性．观察到试管中溶液变为红色可得出的结论是碳酸 sketch template
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某同学为了探究碳酸的酸性强弱设计了如图所示的装置 1A为碳酸钙B为浓醋酸C为硅酸钠溶液实验现象C中产生白色胶状沉淀由此可得出 sketch template
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某学习小组同学为了确定盐酸苯酚碳酸的酸性强弱设计了如图所示的装置图进行实验1锥形瓶内装某可溶性盐写出A中反应的离子方程式 sketch template
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18．为确认CHOHHCO和CHCOOH 的酸性强弱某学生设计了如图所示的装置一次 实验即可达到目的请据此实验回答 1锥形瓶中装 sketch template
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某学生为分离乙酸乙酯乙酸乙醇的混和物设计如下分离操作步骤流程图 试回答下列问题 1a试剂的化学式 B试剂的名称 2操作Ⅰ sketch template
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