1 H 2 S Cl 2 H 2

1) H 2 S + Cl 2 + H 2 O = H 2 SO 4 + HCl 2) Cu 2 O + HNO 3 = NO + Cu(NO 3 )2 + H 2 O 3) Cl 2 + I 2 + H 2 O = HIO 3 + HCl 4) Fe + O 2 + KOH = KFe. O 2 + H 2 O 5) S + Cl 2 + H 2 O = H 2 SO 4 + HCl 6) C + KNO 3 = K 2 CO 3 + CO 2 + N 2 7) Ag. NO 3 + Cl 2 = Ag. Cl + O 2 + N 2 O 5 8) Br 2 + KI + H 2 O = KIO 3 + HBr 9) NO 2 + KOH = KNO 3 + H 2 O 10) HNO 3 + H 2 S = H 2 SO 4 + NO 2 + H 2 O 11) HNO 2 + HI = I 2 + NO + H 2 O 12) SO 2 + Br 2 + H 2 O = H 2 SO 4 + HBr 13) H 2 S + Fe 2 O 3 = Fe. S + H 2 O

1) H 2 S + Cl 2 + H 2 O = H 2 SO 4 + HCl H 2 S + 4 Cl 2 + 4 H 2 O = H 2 SO 4 + 8 HCl 2) Cu 2 O + HNO 3 = NO + Cu(NO 3 )2 + H 2 O 3 Cu 2 O + 14 HNO 3 = 2 NO + 6 Cu(NO 3 )2 + 7 H 2 O 3) Cl 2 + I 2 + H 2 O = HIO 3 + HCl 5 Cl 2 + I 2 + 6 H 2 O = 2 HIO 3 + 10 HCl 4) Fe + O 2 + KOH = KFe. O 2 + H 2 O 4 Fe + 3 O 2 + 4 KOH = 4 KFe. O 2 + 2 H 2 O

5) S + Cl 2 + H 2 O = H 2 SO 4 + HCl S + 3 Cl 2 + 4 H 2 O = H 2 SO 4 + 6 HCl 6) C + KNO 3 = K 2 CO 3 + CO 2 + N 2 5 C + 4 KNO 3 = 2 K 2 CO 3 + 3 CO 2 + 2 N 2 7) Ag. NO 3 + Cl 2 = Ag. Cl + O 2 + N 2 O 5 4 Ag. NO 3 + 2 Cl 2 = 4 Ag. Cl + O 2 + 2 N 2 O 5 8) Br 2 + KI + H 2 O = KIO 3 + HBr 3 Br 2 + KI + 3 H 2 O = KIO 3 + 6 HBr

9) NO 2 + KOH = KNO 3 + H 2 O 4 NO 2 + 4 KOH = 4 KNO 3 + 2 H 2 O 10) HNO 3 + H 2 S = H 2 SO 4 + NO 2 + H 2 O 8 HNO 3 + H 2 S = H 2 SO 4 + 8 NO 2 + 4 H 2 O 11) HNO 2 + HI = I 2 + NO + H 2 O 2 HNO 2 + 2 HI = I 2 + 2 NO + 2 H 2 O 12) SO 2 + Br 2 + H 2 O = H 2 SO 4 + HBr SO 2 + Br 2 + 2 H 2 O = H 2 SO 4 + 2 HBr 13) H 2 S + Fe 2 O 3 = Fe. S + H 2 O 3 H 2 S + Fe 2 O 3 = 2 Fe. S + 3 H 2 O

HBr + KBr. O 3 = Br 2 + KBr + H 2 O Ba(OH)2 + Cl 2 = Ba. Cl 2 + Ba(Cl. O 3 )2 + H 2 O Ba(OH)2 + 2 Cl 2 = Ba. Cl 2 + Ba(Cl. O 3 )2 + H 2 O

2) Pb. S + H 2 O 2 = Pb. SO 4 + … Pb. S + H 2 O 2 = Pb. SO 4 + H 2 O Pb. S + 4 H 2 O 2 = Pb. SO 4 + 4 H 2 O 3) КMn. O 4 + K 2 SO 3 + KOH = К 2 Mn. O 4 + … КMn. O 4 + K 2 SO 3 + KOH = К 2 Mn. O 4 + K 2 SO 4 + H 2 O 2 КMn. O 4 + K 2 SO 3 + 2 KOH = 2 К 2 Mn. O 4 + K 2 SO 4 + H 2 O

4) К 2 Cr 2 O 7 + KI + H 2 SO 4 = Cr 2(SO 4)3 + … + K 2 SO 4 + H 2 O К 2 Cr 2 O 7 + KI + H 2 SO 4 = Cr 2(SO 4)3 + I 2 + K 2 SO 4 + H 2 O К 2 Cr 2 O 7 + 6 KI + 7 H 2 SO 4 = Cr 2(SO 4)3 + 3 I 2 + 4 K 2 SO 4 + 7 H 2 O 5) KCl. O 3(т) + HCl(конц. ) = Cl 2 + … KCl. O 3 + HCl = Cl 2 + H 2 O + KCl. O 3 + 6 HCl = 3 Cl 2 + 3 H 2 O + KCl

6) нитрит калия + серная кислота + иодид калия = … KNO 2 + H 2 SO 4 + KI = I 2 + NO + K 2 SO 4 + H 2 O 2 KNO 2 + 2 H 2 SO 4 + 2 KI = I 2 + 2 NO + 2 K 2 SO 4 + 2 H 2 O 7) Mn. O 2 + KNO 3 + KOH = К 2 Mn. O 4 + KNO 2 + … Mn. O 2 + KNO 3 + KOH = К 2 Mn. O 4 + KNO 2 + H 2 O Mn. O 2 + KNO 3 + 2 KOH = К 2 Mn. O 4 + KNO 2 + H 2 O

8) NH 4 NO 2 = N 2 + … NH 4 NO 2 = N 2 + H 2 O NH 4 NO 2 = N 2 + 2 H 2 O 9) (NH 4)2 SO 4 + Ca(NO 2)2 = N 2 + Ca. SO 4 + H 2 O (NH 4)2 SO 4 + Ca(NO 2)2 = 2 N 2 + Ca. SO 4 + 4 H 2 O

10) PH 3 + КMn. O 4 + HCl = H 3 PO 4 + KCl + … PH 3 + КMn. O 4 + HCl = H 3 PO 4 + KCl + Mn. Cl 2 + H 2 O 5 PH 3 + 8 КMn. O 4 + 24 HCl = 5 H 3 PO 4 + 8 KCl + 8 Mn. Cl 2 + 12 H 2 O 11) К 2 Cr 2 O 7 + KNO 2 + H 2 SO 4 = Cr 2(SO 4)3 + KNO 3 + K 2 SO 4 + H 2 O К 2 Cr 2 O 7 + 3 KNO 2 + 4 H 2 SO 4 = Cr 2(SO 4)3 + 3 KNO 3 + K 2 SO 4 + 4 H 2 O

12) Mg. S + HNO 3 = Mg. SO 4 + NO 2 + H 2 O Mg. S + 8 HNO 3 = Mg. SO 4 + 8 NO 2 + 4 H 2 O 13) Fe. SO 4 + КMn. O 4 + H 2 SO 4 = Fe 2(SO 4)3 + Mn. SO 4 + K 2 SO 4 + H 2 O 10 Fe. SO 4 + 2 КMn. O 4 + 8 H 2 SO 4 = 5 Fe 2(SO 4)3 + 2 Mn. SO 4 + K 2 SO 4 + 8 H 2 O