P->P2O5->H3PO4->CA(HPO4)->Ca3(PO4)2 AI->ALCI3->AI(OH)3->AL2(SO4)3->AI2(SO4)3->AI(NO3)3...

Question

P->P2O5->H3PO4->CA(HPO4)->Ca3(PO4)2
AI->ALCI3->AI(OH)3->AL2(SO4)3->AI2(SO4)3->AI(NO3)3
Fe2O3->Fecl3->Fe(OH)3->Fe2(SO4)3

Answer 1

4P+5O2=2P2O5 P2O5+3H2O=2H3PO4 H3PO4+Ca3(PO4)2=3CaHPO4 2CaHPO4+Ca(OH)2=Ca3PO4+2H2O 2Al+3Cl2=2AlCl3 AlCl3+3KOH=Al(OH)3+3KCl 2Al(OH)3+3H2SO4=Al2(SO4)3+6H2O Al2(SO4)3+ реакция не возможна т.к все нитриды растворимы Fe2O3+6HCl=2FeCl3+3H2O FeCl3+3KOH=Fe(OH)3+3KCl 2Fe(OH)3+3H2SO4=Fe2(SO4)3+6H2O