BaCl2 + Fe2(S04)3 → FeCl3 + BaS04 P205 + H20→ H3P04 MnO + 02 →Mn02 Сг(ОН)3 → Сг2О3 + Н20 Na20 + Н20 → NaOH СаСl2 + K3P04 → Са3(PО4)2 + KCl FeBr3 + Zn → ZnBr2 + Fe SO2 +O2 → SO3 Si + F2→SiF4 Р203 + Н20→ H3P03 Ca(OH)2 + Na3P04 → Ca3(P04)2 + NaOH N02-→ NO + 02 N2 + H2 = NH3 Ca + H3PO4 = Ca3(PO4)2 +H2 Ba(OH)2 + HCl = BaCl2 + H2O ZnCl2 + AgNO3 = AgCl + Zn(NO3)2 Li + N2 = Li3N Zn + HCl = ZnCl2 +H2 Fe(OH)3 + HCl = FeCl3 + H2O BaCl2 + Al2(SO4)3 = AlCl3 + BaSO4 Расстановка коэффициентов.