Question

Ca3(Po4)2 ->P->P2O5->H3PO4->Ag

Answer 1

2Ca₃(PO₄)₂ +10C + 6SiO₂ = 4P + 6CaSiO₃ +10CO

4P + 5O₂ = 2P₂O₅

P₂O₅ + 3H₂O = 2H₃PO₄

вероятно, не дописано H₃PO₄ -> Ag₃PO₄

H₃PO₄ + 3AgNO₃ = Ag₃PO₄ + 3HNO₃