Уравнение хим. реакции: K+Cl₂→KCI Ba+O₃→BaO Ag+S2→Ag₂S Al+Cl₂→AlCl₃ P+O₂→P₂O₂ ...+O₂→ZnO ...+O₂→CaO ...+O₂→Cr₂O₃
2K + Cl2 = 2KCl 2Ba + O2 = 2BaO 2Ag + S = Ag2S 2Al + 3Cl2 = 2AlCl3 4P + 5O2 =2P2O5 2Zn + O2 = 2ZnO 2Ca + O2 = 2CaO 4Cr + 3O2 = 2Cr2O3