Question

Напишите ровняние реакций Zn(OH)2->K2ZnO2->Zn3(PO4)2->ZnHPO4->H3PO4->HPO3

Answer 1

1) a) Zn(OH)2 + 2KOH (+T) = K2ZnO2 + 2H2O,b) 3K2ZnO2 + 4H3PO4 = 2K3PO4 + Zn3(PO4)2 + 6H2O,c) Zn3(PO4)2 + H3PO4 = 3ZnHPO4,d) 2ZnHPO4 (+T) = Zn2P2O7 (???) + H2O или так 3ZnHPO4 (+T) = Zn3(PO4)2 + H3PO4,e) Zn2P2O7 + 2H2SO4 = 2ZnSO4 + H4P2O7 и далее H4P2O7 (+T) = 2HPO3 + H2O илиf) 2H3PO4 (+T) = H4P2O7 + H2O и далее H4P2O7 (+T) = 2HPO3 + H2O;  2) a) CH4 + Cl2 (+hv) = CH3Cl + HCl,b) CH3Cl + 2NH3 (+T) = CH3NH2 + NH4Cl,c) CH3NH2 + NaNO2 + HCl = CH3OH + NaCl + N2 + H2O,d) CH3OH + HCOOH (+T, +H+) = HCOOCH3 + H2O,e) HCOOCH3 + KOH (+T) = CH3OH + HCOOK.