Завершите уравнения реакций:

 

1)P2O5+......=H3PO4

   

2)PH3+.....P2O5+H2O

 

 

3)Na2O+.....=NaOHSO3+.....=Na2SO4 +.......

 

 

 

4)K2O+....=KCL+H2O

 

5)CaO+......=CaSiO3 

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