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某同学在实验室进行了两个有关金属性质的实验： 实验I：硫酸铝溶液和铁粉混合 实验Ⅱ：硫酸铜溶液与铁粉混合 在上述两个实验结束后，该同学将实验I和Ⅱ的物质全部倒入同一个烧杯中，发现烧杯内的红色固...
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某同学为探究元素周期表中元素性质的递变规律设计了如下系列实验Ⅰ.1试用实验室提供的下列试剂设计两个原
关于下列图示的说法中正确的是
用图①所示实验可比较硫、碳、硅三种元素的非金属性强弱 （ ）
A.用图①所示实验可比较硫、碳、硅三种元素的非金属性强弱
用图②所示实验装置排空气法收集CO
2
气体
图③表示可逆反应CO（g）+H
2
O（g）
CO
2
（g）+H
2
（g）的△H.大于0
图④两个装置中通过导线的电子数相同时，消耗负极材料的物质的量也相同
在实验室中不能达到目的的是
用金属钠分别与水和乙醇反应，比较水和乙醇分子中羟基氢（－OH）的活泼性
石墨作电极，电解Cu(NO
3
)
2
、AgNO
3
的混合溶液，比较金属铜和银的金属活动性
分别测定CH
4
和H
2
S 的沸点高低，比较硫和碳两种元素的非金属性强弱
用检验Na
2
CO
3
和Na
2
SO
4
水溶液酸碱性实验，比较碳和硫两元素非金属性的强弱
某兴趣小组在实验室探究铁丝硫分别在氧气中燃烧的实验.1铁丝硫在氧气中燃烧的实验中集气瓶中要事先放入少
评审员在某实验室复查评审时发现实验室的部分仪器设备量值溯源有问题上次现场考核时就提出该问题这次复查仍
关于比对试验下列说法正确是的
由两个或多个实验室对物品进行校准。
由两个或多个实验室，按预先规定的条件，对物品进行校准。
由两个或多个实验室， 按预先规定的条件， 对相同或类似的物品进行校准。
由两个或多个实验室，按预先规定的条件，对相同或类似的物品进行校准／检测的组织、实施和评价。
实验室研究有其优势对于的行为进行了严格的控制更好地控制实验可在其他实验室中
实验室发现一瓶标签脱落的固体试剂小王分别取少量的该固体进行了下列实验根据实验现象该固体最可能是
金属单质
碱
盐
金属氧化物
在研究金属性质时某小组同学进行了如下实验探究将一定量铁粉加入硫酸锌和硫酸铜的混合溶液中充分反应后过
某化学兴趣小组实验探究探究碳硅元素的非金属性的相对强弱根据要求回答下列问题1实验装置如下装置E.中盛
某实验室年初进行了外部评审且实验室按照评审组提出的意见已逐条整改年末再进行管理评审
需要
不需要
请按要求分别设计一个简单易行的验证实验1验证钠和镁的金属性强弱2验证硫和氯的非金属性强弱
某化学兴趣小组利用右图装置验证非金属性的变化规律1仪器A.的名称为________管D.的作用是__
用下列装置进行的实验中不能达到相应实验目的的是
装置甲：防止铁钉生锈
装置乙：验证
的非金属性强于Si C.装置丙：实验室制取乙酸乙酯
装置丁：实验室制备硝基苯
某同学设计实验以探究元素性质的递变规律实验装置如图所示实验Ⅰ根据元素最高价含氧酸的酸性强弱探究元素非
一客户对某实验室出具的检测数据和检测结论直接向实验室检测人员提出口头异议该检测人员立即进行了复检经过
某化学兴趣小组实验探究探究碳硅元素的非金属性的相对强弱根据要求回答下列问题1实验装置如下装置E.中盛
某化学兴趣小组实验探究探究碳硅元素的非金属性的相对强弱根据要求回答下列问题1实验装置如下装置E.中盛
下图是课本中和某同学改进的探究分子的性质实验装置1图Ⅰ是教材实验实验中可观察到的现象是据此现象可知分
用右图实验装置可添加加热或尾气处理装置进行以下实验无法达到目的的是
实验室制取并收集少量NO
2
实验室制取并收集少量NH
3
验证非金属性：C.＞Si
验证氧化性：Cl
2
＞I
2
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A.用图①所示实验可比较硫、碳、硅三种元素的非金属性强弱 用图②所示实验装置排空气法收集CO2气体 图③表示可逆反应CO（g）+H2O（g）
CO2（g）+H2（g）的△H.大于0 图④两个装置中通过导线的电子数相同时，消耗负极材料的物质的量也相同
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