1.H3PO4 2H3PO4+3NA2O=>2NA3PO4

2H3PO4+3CA(OH)2=>CA3(PO4)2+H2O

2H3PO4+3K2S=>3H2S+2K3PO4
сокращенное ионное из этих примеров
2.H3PO4+NA2CO3=>
H3PO4+K2SO3=>
решить и ионное, спасибо))
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