寫出下列各步的化學方程式,是離子反應的寫出離子方程式。(1)                         ...

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問題詳情:

寫出下列各步的化學方程式,是離子反應的寫出離子方程式。(1)                         ...

寫出下列各步的化學方程式,是離子反應的寫出離子方程式。

(1)                                                                  

(2)                                                                  

(3)                                                                   

(4)                                                                  

(5)                                                                  

(6)                                                                  

(7)                                                                   

【回答】

(1) 2NaOH + 2H2O = 2Na+ + 2OH- + H2↑

(2) 2Na  +  O2  Na2O2

(3) 4Na  +  O2  =  2Na2O

(4) 2Na2O2  + 2H2O = 4Na+ 4OH- +O2↑

(5) Na2O  +  H2O =  2Na+ + 2OH-

(6) 2OH-  +  CO2  =  CO32- + H2O

(7) 2Na2O +O2    2Na2O2

知識點:*的化合物

題型:綜合題

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