Ответы и объяснения

2014-03-05T17:38:28+04:00
№1
1)2H₂PO₄+3Zn->Zn₃(PO₄)₂+3H₂
2)2H₃PO₄+3ZnO->Zn₃(PO₄)₂+3H₂O
3)2H₃PO₄+3Ba(OH)₂->Ba₃(PO₄)₂+6H₂O
4)H₃PO₄+Al(OH)₃->AlPO₄+3H₂O
5)H₃PO₄+FeCl₃->FePO₄+3HCl
6)2H₃PO₄+3K₂CO₃->2K₃PO₄+3H₂O+3CO₂
2)Ca->Ca(OH)₂->Ca₃(PO₄)₂<-CaO
   1. Ca+2H₂O->Ca(OH)₂+H₂
   2.3Ca(OH)₂+2H₃PO₄->Ca₃(PO₄)₂+3H₂O
   3.3CaO+P₂O₅->Ca₃(PO₄)₂
Ca₃(PO₄)₂->H₃PO₄<-P₂O₅<-P
   1. Ca₃(PO₄)₂+3H₂SO₃->3CaSO₃+2H₃PO₄
   2.4P+5O₂->2P₂O₅
   3.P₂O₅+3H₂O->2H₃PO₄
P->H₃P->Na₃P
   1.2P+3H₂->2H₃P
    2.2H₃P+6Na->2Na₃P+3H₂