鉴别以下几种物质NaCl.K2SO4.NaCO3.KCl.NaHCO3 分步骤一一鉴别出来 ``````````````
来源:学生作业帮 编辑:作业帮 分类:综合作业 时间:2024/05/26 12:35:55
鉴别以下几种物质
NaCl.K2SO4.NaCO3.KCl.NaHCO3 分步骤一一鉴别出来
`````````````````````````利用(①)反映
```````````````````````````````↓
``````````````现象(②) ``````````````现象(③)
`````````````1______溶液`````````````` 2______溶液
````````````````↓ ````````````````````````↓
```````````加(④)溶液 `````````````````加(⑤)溶液
````````↓ ``````````↓ ``````````↓ ``````````````````↓
````有沉淀 ````````无现象````` 有沉淀 ```````````````无现象
````原溶液 ````````原溶液````` 原溶液``````````````` 原溶液
````为(⑥)``````` `为KCl ``````为(⑦) ``````````````↓
````````````````````````````````````````````````````加(⑧)
```````````````````````````````````````````````↓ ```````````↓
````````````````````````````````````````````有气体```````` 无现象
````````````````````````````````````````````原溶液```````` 原溶液
````````````````````````````````````````````为(⑨)`````` 为NaCl
填出 1.2是什么溶液 和①至⑨的空
最好能告诉我反映方程和原理
NaCl.K2SO4.NaCO3.KCl.NaHCO3 分步骤一一鉴别出来
`````````````````````````利用(①)反映
```````````````````````````````↓
``````````````现象(②) ``````````````现象(③)
`````````````1______溶液`````````````` 2______溶液
````````````````↓ ````````````````````````↓
```````````加(④)溶液 `````````````````加(⑤)溶液
````````↓ ``````````↓ ``````````↓ ``````````````````↓
````有沉淀 ````````无现象````` 有沉淀 ```````````````无现象
````原溶液 ````````原溶液````` 原溶液``````````````` 原溶液
````为(⑥)``````` `为KCl ``````为(⑦) ``````````````↓
````````````````````````````````````````````````````加(⑧)
```````````````````````````````````````````````↓ ```````````↓
````````````````````````````````````````````有气体```````` 无现象
````````````````````````````````````````````原溶液```````` 原溶液
````````````````````````````````````````````为(⑨)`````` 为NaCl
填出 1.2是什么溶液 和①至⑨的空
最好能告诉我反映方程和原理
① 焰色反应
② 火焰呈浅紫色
③ 火焰呈黄色
④ BaCl2溶液
⑤ CaCl2溶液
⑥ K2SO4溶液
⑦ Na2CO3
⑧ 稀HCl
⑨ NaHCO3
1、KCl、K2SO4;2、NaCl、Na2CO3、NaHCO3.
加④溶液:BaCl2+K2SO4=BaSO4↓+2KCl
加⑤溶液:Na2CO3+CaCl2=CaCO3↓+2NaCl
加⑧:HCl+NaHCO3=NaCl+H2O+CO2↑
② 火焰呈浅紫色
③ 火焰呈黄色
④ BaCl2溶液
⑤ CaCl2溶液
⑥ K2SO4溶液
⑦ Na2CO3
⑧ 稀HCl
⑨ NaHCO3
1、KCl、K2SO4;2、NaCl、Na2CO3、NaHCO3.
加④溶液:BaCl2+K2SO4=BaSO4↓+2KCl
加⑤溶液:Na2CO3+CaCl2=CaCO3↓+2NaCl
加⑧:HCl+NaHCO3=NaCl+H2O+CO2↑
鉴别以下几种物质NaCl.K2SO4.NaCO3.KCl.NaHCO3 分步骤一一鉴别出来 ``````````````
如何鉴别NaCO3、K2CO3、NaCl和K2SO4
用一种试剂和必要的实验操作就能鉴别NaHCO3、NaCl、KCl、K2SO4四种物质,此试剂与实验操作是( )
如何鉴别NACL,KCL ,NAHCO3 ,和NA2CO3·10H2O四种晶体?写出实验步骤
如何鉴别NACO3、NAHCO3和NACL.
用一种试剂和必要的实验操作就能鉴别NaHCO3,NaCl,KCl,K2SO4为什么不用BaCl2溶液,
鉴别Nacl.Kcl
鉴别nano3,nacl,kcl
如何鉴别NaCl&KCl
如何鉴别NaCO3,K2CO3,NCl和K2SO4?
能够用来鉴别BaCl2,NaCl,NaCO3三种物质的试剂是
如何鉴别Kcl和Nacl