ПОЖАЛУЙСТА. ОЧЕНЬ СРОЧНО!!! 50 БАЛЛОВ !
Осуществите превращения :
1) P->P2O5->H3PO4->Zn3(Po4)2->Zn->ZnO->ZnSO4->BaSO4
2) Mg->MgO->Mg3(PO4)2->Mg(OH)2->Mg(NO3)2->Mg->MgCl2->AgCl
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