Уравнять уравнения реакций.Ca + 2HCl = Ca"?" + H2 2Mg +"?" = 2MgO 2H"?"+ 3O2 = 2H2O + 2SO2 Fe2O3+ 3H2 = 2Fe + 3"?"O PH3 + Cl2 = PCl3 + HCl CH4 + Cl2 = CCl4+ HCl P + N2O = N2 + P2O5
Ca + 2HCl(разб.) = CaCl2 + H2↑ 2Mg + O2 = 2MgO H2Sn + O2 = 2SO2 + 2H2O Fe2O3 + 3H2 = 2Fe + 3H2O 3Cl2 + PH3 = 3HCl + PCl3 --------------------------------------- P4 + 10N2O → P4O10 + N2