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某校兴趣小组同学对氢氧化钠和稀盐酸�生中和反应的有关问题进行了如下实验．以下2小题选做1题若两题都做则以第1甲同学为了证明氢氧化钠 Template






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tomski某校兴趣小组同学对氢氧化钠和稀盐酸�生中和反应的有关问题进行了如下实验．以下2小题选做1题若两题都做则以第1甲同学为了证明氢氧化钠 coloring
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某校甲乙两个兴趣小组对实验室一瓶敞口放置的氢氧化钠固体进行探究探究一氢氧化钠固体是否变质兴趣小组同学取量氢氧化钠固体样品于试管中加 sketch template
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某校兴趣小组同学对氢氧化钠和稀盐酸生中和反应的有关问题进行了如下实验．以下2小题选做1题若两题都做则以第1甲同学为了证明氢氧化钠 sketch template
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学习化学开启了们认识物质之旅。某实验小组的同学对氢氧化钠的性质及应用进行了如下的探究。 【探究一溶解过程中的能量变化（1）如图1所示，某 sketch template
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某同学对盐酸溶液与氢氧化钠溶液的反应按下图所示过程进行探究 1填充实验过程空格项 实 验 步 骤 现 象 结 论 sketch template
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某兴趣小组的同学在老师的指导下对一瓶没有塞橡皮塞的氢氧化钙溶液进行探究请你一起参与提出问题该氢氧化钙溶液是否全部变质猜想与假设 sketch template
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实验室有一瓶长期暴露在空气中的氢氧化钠固体某兴趣小组的同学对该样品的成分及含量进行了探究 实验探究一为得到纯净的氢氧化钠固体并测定 sketch template
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某化学兴趣小组在化学实验室中探究氢氧化钠的化学性质．小组同学取在空气中露置一段时间的氢氧化钠溶液进行实验．实验一取量的氢氧化钠溶液 sketch template
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题目在研究“酸碱中和反应 时某兴趣小组同学想证明稀盐酸与氢氧化钠溶液混合后是否生了化学反应进行了如下探究1在盛有氢氧化钠溶液的 sketch template
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题目某化学兴趣小组的同学按图示装置验证氢氧化钠的化学性质实验步骤Ⅰ关闭K1K2将注射器内的液体注入装置A中的锥形瓶内Ⅱ打开 sketch template
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某研究性课题小组对氢氧化钠溶液和稀盐酸中和反应的有关问题进行了如下探究Ⅰ1甲同学为了证明氢氧化钠溶液与稀盐酸能够生反应设计并完成 sketch template
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某兴趣小组利用“盐酸、硫酸铜、氢氧化钠、碳酸钠、硝酸钾”五种溶液对“复分解反应生的条件”进行微观探析。 sketch template
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氢氧化钠与盐酸的反应无明显现象某化学兴趣小组为证明氢氧化钠与盐酸生了化学反应进行了如下的实验探究实验探究一小在试管中加入约2mL sketch template
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某化学兴趣小组的同学在实验室配制质量分数为8%的氢氧化钠溶液并用其测定某稀盐酸中溶质的质量分数 1配制200g质量分数为8%的氢氧化钠 sketch template
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如图所示某化学小组同学进行氢氧化钠与稀盐酸之间的中和反应实验请根据实验示意图回答下列问题1操作中使用胶头滴管逐滴滴加这样做的目的是 sketch template
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33．某兴趣小组同学将CO2分别通入澄清 石灰水和氢氧化钠溶液中观察到前者变浊 后者无明显现象 1写出上述澄清石灰水变浊的化学 sketch template
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某化学兴趣小组在完成酸碱盐的化学性质实验时做了如下两个实验1滴有酚酞的氢氧化钠溶液中加入稀硫酸2碳酸钠溶液中加入稀盐酸．完成 sketch template
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某化学兴趣小组的同学往氢氧化钠溶液中滴加稀盐酸时没有看到明显现象．氢氧化钠与盐酸是否生了化学反应酸与碱生中和反应会放出热量．甲乙丙 sketch template
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某小组同学在完成氢氧化钠与盐酸中和反应实验时溶液的pH值变化如图所示结合坐标图分析该小组的同学分析合理的是 A．实验是将氢氧化钠滴入 sketch template
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某化学兴趣小组三位同学在学习盐酸与氢氧化钠反应后分别结合自己在实验室中所做的实验各从不同方面对其进行图象描述．图A是实际操作图图B是反应 sketch template
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某兴趣小组同学对NaOHNa2CO3NaHCO3NaCl等常见的钠的化合物进行了研究知识回顾下列相关说法正确的是 A．氢氧化钠 sketch template
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某校兴趣小组同学进行常见酸碱盐的性质实验时现实验台上放的药品中有一瓶装有溶液的试剂瓶未盖瓶盖且标签破损于是决定对这瓶溶液进行探究 sketch template
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某兴趣小组在探究物质溶于水的放热现象时现将氢氧化钠固体溶于水后溶液温度没有明显变化同学们认为该氢氧化钠固体变质了为此他们开展了如下 sketch template
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Ⅰ某校兴趣小组的同学进行“比较过氧化氢在不同条件下的分解 的实验他们对实验的处理如下表所示试管组别实验处理加入体积分数为3%的H2O2 sketch template
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某校兴趣小组同学准备进行常见酸碱盐的性质实验时现实验 台上放的药品中有一装溶液的试剂瓶未盖瓶盖且标签破损于是决定对这瓶溶液进行 sketch template
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某兴趣小组同学对NaOHNa2CO3NaHCO3NaCl等常见的钠的化合物进行了研究知识回顾下列相关说法正确的是 A．氢氧化钠 sketch template
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某兴趣小组的同学们以“稀硫酸与氢氧化钠溶液能否生反应 为课题进行了学探究 同学们在烧杯中加入10mL稀硫酸滴入几滴酚酞试液接着分两次 sketch template
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某化学兴趣小组的同学往氢氧化钠溶液中滴加稀盐酸时没有看到明显现象．提出问题氢氧化钠与盐酸是否生了化学反应查阅资料酸与碱生中和 sketch template
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某化学兴趣小组学习酸碱中和反应后对稀盐酸与氢氧化钠溶液混合后的有关问题进行了如下探究请你一起参与他们的探究．提出问题氢氧化钠溶液与稀 sketch template
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下面是某研究性学习小组对氢氧化钠有关性质进行探究的过程请回答下列问题．1欲配制500g溶质质量分数为10%的氢氧化钠溶液．需要水 Ml sketch template
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某校兴趣小组同学对氢氧化钠和稀盐酸生中和反应的有关问题进行了如下实验．以下2小题选做1题若两题都做则以第1甲同学为了证明氢氧化钠 sketch template
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某兴趣小组的同学们围绕“酸碱中和反应 将学生成分若干小组开探宂活动请你和他们一起完成以下实验探究稀硫酸与氢氧化钠溶液能否生反应甲组同学 sketch template
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某兴趣小组的同学们以“稀硫酸与氢氧化钠溶液能否生反应 为课题进行了学探究 同学们在烧杯中加入10mL稀硫酸滴入几滴酚酞试液接着分两次 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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兴趣小组同学对“氢氧化钠溶液与稀硫酸混合是否生了化学反应 进行了如下探究提出问题氢氧化钠溶液与稀盐酸混合是否生了化学反应猜想与 sketch template
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某校兴趣小组对氢氧化钠溶液与稀盐酸混合后的有关问题进行了如下探究请同学们一起参与此次探究之旅．1探究一判断氢氧化钠溶液与稀盐酸混合后 sketch template