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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 Template






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sketch 2740 Monster by Gabriela Segura
sketch 3344 Homer by Samuel Roberto
sketch 3484 Red Hot Chili Peppers by Nik Zulqarnain
sketch 4269 dragón
sketch 4387 dong air
sketch 1500
sketch 3562 Angry by Leon Soria Ricardo
sketch 2765 Kratos by Nassim Nouri

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sketch 2619 Underwater by sketchmaster
sketch 3659 Portrait by Mari Falcsik
sketch 5090
sketch 5188 Paul Walker by Taï Marsan
sketch 4385
sketch 1435 donara
sketch 5053
sketch 5052 Gorillaz by Rafał Dawid





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tomski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 coloring
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某校化学兴趣小组在探究“酸碱盐的相关性质”时，做了如下实验（如图1），实验结束后，小组同学将两支试管中的废液同时倒入一个洁净的烧杯中（如图1所 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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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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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题目根据如图所示实验探究酸碱中和反应实验一通过溶液酸碱性变化证明酸碱生中和反应1图中证明碱与酸生反应的现象是 2图 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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某化学兴趣小组设计了如图所示实验装置进行了以下实验．1先打开K1关闭K2和K3从长颈漏斗A 中加入足量的稀盐酸．此时装置B中生 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于是探究了碳酸氢钠的化学性质 sketch template
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题目某校化学兴趣小组同学利用数字化传感器探究稀盐酸和氢氧化钠的反应过程测得烧杯中溶液的pH随滴加液体体积变化的曲线如图所示1根据 sketch template
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某化学兴趣小组在复习碱的化学性质时进行了如下实验1写出A反应的化学方程式 2B实验中观察到 的现象时证明了氢氧化钠和稀硫酸恰好 sketch template
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题目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硫酸的仪器名称是 2反应后装置B sketch template
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题目学习完盐的化学性质以后同学们做了一个趣实验如图所示甲乙同学分别在盛有碳酸钠溶液的烧杯中倾倒氯化钡溶液和氢氧化钾溶液在倾倒 sketch template
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某化学兴趣小组为探究SO2的性质按图所示装置进行实验．请回答下列问题1装置A中盛放亚硫酸钠的仪器名称是 其中生反应的化学方程式为 sketch template
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题目某化学兴趣小组在实验室中进行化学实验按如图甲连接好线路现灯泡不亮按图乙连接好线路现灯泡亮由此得出的结论正确的是 A sketch template
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某化学兴趣小组在实验室制取漂白粉并探究氯气与石灰乳反应的条件和产物已知二氧化锰与浓盐酸反应可制备氯气同时生成MnCl2氯气和碱的 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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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某化学兴趣小组的同学利用下图实验对碳酸钙高温加热一段时间现石灰水变浊停止加热同学们对剩余固体的成分进行探究． 提出问题加热后 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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某化学兴趣小组在实验室制取漂白粉并探究氯气与石灰乳反应的条件和产物已知氯气和碱的反应为放热反应温度较高时氯气和碱还能生如下反应 sketch template
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某化学兴趣小组在家庭化学实验中按照下图1连接好线路现灯泡不亮按照下图2连接好线路现灯泡亮由此得出的结论正确的是 A．NaCl是非电解 sketch template
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题目某化学兴趣小组在实验室用除去表面氧化物的铁钉与浓硫酸共热制取SO2 并完成相关性质探究1有同学认为制得的SO2 中可能混有杂质 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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化学兴趣小组的同学取10g某锌样品含量杂质且杂质不溶于水也不与酸反应于烧杯中其中加入一定量的稀硫酸当加入稀硫酸的质量为90 sketch template
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某化学兴趣小组学习酸碱盐性质后通过实验对碱的化学性质进行验证和总结如图所示已知CaCl2溶液中性CaCl2 Na2CO3 sketch template
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某化学兴趣小组对“空气中氧气含量的测定”展开探究。【实验回顾实验室常用红磷燃烧的方法测定空气中氧气的含量（如图1、图2），红磷燃烧的符号 sketch template
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某化学兴趣小组的同学利用如图所示实验装置进行实验．请按要求填空1利用B装置可制取的气体有 ．2ACE相连后的装置可用于制取Cl2 sketch template
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某化学兴趣小组的同学进行粗盐提纯实验流程如图1操作依次为 ．2实验结束后该化学兴趣小组的同学计算了精盐产率若结果偏低 sketch template
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请你参与某学习小组的探究活动并回答相关问题．某化学兴趣小组的同学把氢氧化钠的片状固体放在表面皿中离开实验室一天后进行观察．现问题 sketch template
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某兴趣小组在实验室里准备常见酸碱盐的性质实验时 现实验台上放的药品中有一瓶未盖瓶塞且标签破损的溶液 他们决定对这瓶溶液的成分进行 sketch template
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某化学兴趣小组的同学利用如图所示实验装置进行实验请按要求填空1利用B装置可制取的气体有 2ACE相连后的装置可用于制取 sketch template
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某化学兴趣小组在学习“硫酸及其盐的某些性质与用途 中进行如下实验探究 实验一探究浓硫酸的氧化性 将浓H2SO4和铜粉分别放入右图所示的 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欲进行粗盐的初步提纯和溶液的配制实验．1粗盐的初步提纯实验．称取50g粗盐逐步加入15mL水中直到全部溶解为止．还 sketch template