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某学习小组在探究酸的化学性质时做了如图所示的两个实验1�分别装有碳酸钠和碳酸钙粉末的试管中注入一定量的稀盐酸两支试管内均观察到的现象 Template






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tomski某学习小组在探究酸的化学性质时做了如图所示的两个实验1�分别装有碳酸钠和碳酸钙粉末的试管中注入一定量的稀盐酸两支试管内均观察到的现象 coloring
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某实验小组在研究酸的化学性质时，做了如图丙所示5个实验。实验后，某试管中溶液浅绿色，该试管中生反应的化学方程式为 。实验后，某 sketch template
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某学习小组在探究酸的化学性质时做了如图所示的两个实验1分别装有碳酸钠和碳酸钙粉末的试管中注入一定量的稀盐酸两支试管内均观察到的现象 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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在学习酸的化学性质时某兴趣小组做了如下实验并将废液倒入废液缸中．提出问题废液中的溶质是什么交流讨论废液中的溶质一定含有 sketch template
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2013年中考热点题型视导课 Word文档在线阅读与下载 无忧文档 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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同学们在学习酸碱的化学性质时构建了如右图知识络ABCD是不同类别的化合物“ 表示物质在一定条件下可以生化学反应．请回答下列问题 sketch template
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酸的化学性质 活动与探究在稀盐酸和稀硫酸中分别滴加紫色石蕊溶液和无色酚酞溶液 现象稀盐酸和稀硫酸均能使紫色石蕊溶液变红色无色酚酞溶液不 sketch template
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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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为验证“酸的化学通性 某班同学在实验室进行如下实验．请分析并回答相关问题1写出能证明A中反应生的现象红色褪去．2要全面验证酸的 sketch template
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某学习小组的同学对实验室制取二氧化碳及二氧化碳的性质进行如下两个方面的探究。Ⅰ二氧化碳的制取第一小组用如图所示的装置制取二氧化碳并测定生成 sketch template
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同学们在学习酸碱的化学性质时构建了如图知识ABCD 是不同类 别的化合物请回答反应的化学方程式为 反应后生成蓝色溶液则 sketch template
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化学兴趣小组的同学在探究碱的化学性质时完成了如图1所示的两个实验．实验后小明同学将废液倒入同一废液缸中现混合废液浊并显红色．请你完成 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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下面是某学习小组在探究稀盐酸和氢氧化钠溶液是否生反应的实验过程1图1是甲小组同学滴有酚酞的稀盐酸中滴加NaOH溶液振荡后溶液仍为无 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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同学们在学习氢氧化钙的化学性质时对氢氧化钙溶液与碳酸钠溶液反应后溶液中的溶质的成分进行了探究．请你一同探究并回答下列问题提出问题滤液中 sketch template
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下面是某工厂苛化法生产烧碱的示意图．请回答下列问题1X为最常用的溶剂其化学式H2O．2生石灰可以由碳酸钙高温煅烧而得其反应的化学 sketch template
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某化学实验小组欲探究盐酸氢氧化钙的化学性质取8支试管分别用A﹣H编号后做如下实验． 1实验中观察到有气泡出现的试管是 有沉淀生成的 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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某化学小组在课外活动时做了一个实验在甲试管中装入固体物质乙试管中装入液体试剂按如图所示组装好仪器图中铁架台等仪器已略去．1若甲 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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题目为了从含有FeSO4CuSO4的工业废水中回收Cu和硫酸亚铁晶体某学习小组设计并完成了以下实验下列说法正确的是 A固体X中 sketch template
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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装置按要求 sketch template
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氢氧化钠是一种重要的化工原料．某兴趣小组在学习碱的化学性质时进行了如图所示的实验．1图一实验中滴加氢氧化钠溶液后可观察到的现象是气球胀 sketch template
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百度教育 sketch template
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归纳和总结是学习化学的重要方法．小丽在复习单质氧化物酸碱盐性质时构建了如图所示的知识络图有许多不同类别的物质在生化学反应时都 sketch template
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完成下列文字表达式并回答问题1二氧化碳通入澄清的石灰水中观察到的现象是澄清的石灰水变浊．2实验室用过氧化氢溶液和二氧化锰混合制取 sketch template
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题目某学习小组在探究碳酸钠的化学性质时做了下面所示的实验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结论是 sketch template
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如图是电解水的装置图．AB是两个连通并带有刻度的玻璃管C为连接在AB中间的长颈漏斗AB下端是与直流电源相连的两个电极．打开电源开关 sketch template
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某研究性学习小组的同学在研究某种气体的性质时做了如下实验1将铜丝绕成螺旋状放在酒精灯火焰上加热铜丝表面由光亮的红色变为色．表面变的 sketch template
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某学习小组利用下列装置探究氯气氨气之间的反应其中AF分别为氯气和氨气的生装置D为纯净的氯气和氨气的反应装置 请回答下列问题 1 sketch template