17.有两包白色粉末.只知分别是K2CO3和NaHCO3.请你写出鉴别方法(可以少于2种.也可以多于2种.写出2种方法可得6分.3种以上方法得8分)? (1) . (2) . (3) . 查看更多

 

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有两包白色粉末,只知分别是K2CO3和NaHCO3,请你写出鉴别方法。

(1)___________________________________________________________。

(2)___________________________________________________________。

(3)___________________________________________________________。

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(6分)有两包白色粉末,只知分别是K2CO3和NaHCO3,请你写出鉴别方法(写出3种方法可得6分,3种以上方法得7分)

(1)                                                              。       

(2)                                                                  

(3)                                                                  

                                                                  

 

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(6分)有两包白色粉末,只知分别是K2CO3和NaHCO3,请你写出鉴别方法(写出3种方法可得6分,3种以上方法得7分)
(1)                                                              。       
(2)                                                                  
(3)                                                                  
                                                                  

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(6分)有两包白色粉末,只知分别是K2CO3和NaHCO3,请你写出鉴别方法(写出3种方法可得6分,3种以上方法得7分)

(1)                                                               。       

(2)                                                                  

(3)                                                                   

                                                                  

 

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有两包白色粉末,只知分别是K2CO3和NaHCO3,请你写出鉴别方法
(1)_____________________________________。
(2)_____________________________________。 

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