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制备经提纯过氧化氢水溶液的方法及设备与流程 Template






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如图所示是用过氧化氢溶液制取氧气的装置．1写出有标号的仪器名称锥形瓶锥形瓶长颈漏斗长颈漏斗集气瓶集气瓶．2仪器的下端必须 sketch template
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通过学习们知道实验室用过氧化氢溶液制取氧气的过程中常使用二氧化锰做催化剂．而们南雅初三化学兴趣小组的同学们却对“寻找新的催化剂 产生了 sketch template
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如图所示为实验室用过氧化氢溶液制取氧气的实验装置图．请回答下列问题1该实验用到的仪器有哪些2生反应的文字表示式为 ．3检查 sketch template
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下列实验方案中设计不合理的是A．用MnO2来区别水和过氧化氢溶液B．用过滤的方法将浊的水变为澄清的水C．用燃烧木炭的方法制备纯净的二氧化碳 sketch template
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过氧化氢制氧气可用如图A装置．分液漏斗可以通过调节活塞控制液体的滴加速度．分液漏斗中应放入的物质是 锥形瓶中应放入的物质是 写出该方法 sketch template
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实验探究是化学的灵魂请你参与下列的探究活动．1实验室用过氧化氢溶液和二氧化锰制取氧气的生装置应选用如图中的 该反应的文字表达式为 sketch template
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实验详情 sketch template
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经硫酸酸化的高锰酸钾溶液和过氧化氢溶液混合后生反应的化学方程式如下2KMnO4 5H2O2 3H2SO4 = 2MnSO4 sketch template
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47．实验室常用分解过氧化氢溶液的方法制氧气 1请写出该反应的化学方程式 2请分析该装置中带有活塞的分液漏斗的作用 3若将 sketch template