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4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
Mn2O3 + HCl = MnCl2 + Mn2O7 + H2O =>
5 Mn2O3 + 16 HCl = 8 MnCl2 + Mn2O7 + 8 H2O
FeSO4*7H2O + K2Cr2O7 = FeCr2O7 + K2SO4 + H2O =>
FeSO4*7H2O + K2Cr2O7 = FeCr2O7 + K2SO4 + 7 H2O
ZnCO4 + HCOOH = ZnCOOH + HCO4 =>
ZnCO4 + HCOOH = ZnCOOH + HCO4
Na3VO4 + Zn + HCl = VOCl2 + ZnCl2 + NaCl + H2O =>
2 Na3VO4 + Zn + 12 HCl = 2 VOCl2 + ZnCl2 + 6 NaCl + 6 H2O
Cu(NO3)2 + Na2CO3 + H2O = CuCO3*Cu(OH)2 + CO2 + NaNO3 =>
2 Cu(NO3)2 + 2 Na2CO3 + H2O = CuCO3*Cu(OH)2 + CO2 + 4 NaNO3
NaC6H5COO + HCl = NaCl + C6H5COOH =>
NaC6H5COO + HCl = NaCl + C6H5COOH
Pb(NO3)2 + NaI = PbI2 + NaNO3 =>
Pb(NO3)2 + 2 NaI = PbI2 + 2 NaNO3
Na + Fe2O3 = Na2O + Fe =>
6 Na + Fe2O3 = 3 Na2O + 2 Fe
C4H9Br + Na = C8H18 + NaBr =>
2 C4H9Br + 2 Na = C8H18 + 2 NaBr
N2(g) + O2 = N2O5 =>
2 N2(g) + 5 O2 = 2 N2O5
V(NO3)5 + Al = Al(NO3)3 + V =>
3 V(NO3)5 + 5 Al = 5 Al(NO3)3 + 3 V
CH3CH2COOH + CaCO3 = (CH3CH2CO2)2Ca + H2O + CO2 =>
2 CH3CH2COOH + CaCO3 = (CH3CH2CO2)2Ca + H2O + CO2
NH4NO3 + C8H7NO2 = N2 + CO + H2O =>
19 NH4NO3 + 2 C8H7NO2 = 20 N2 + 16 CO + 45 H2O
MnO4{-} + Cl{-} + H{+} = Mn{2+} + H2O + Cl =>
MnO4{-} + 5 Cl{-} + 8 H{+} = Mn{2+} + 4 H2O + 5 Cl
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
сера + озон = диоксидсеры =>
3 S + 2 O3 = 3 SO2
Ca(OH)2 + Al(OH)3 = Ca(AlO2)2 + H2O =>
Ca(OH)2 + 2 Al(OH)3 = Ca(AlO2)2 + 4 H2O
Cu2CO3(OH)2 + NH3 + H2O = [Cu(NH3)4(H2O)2](OH)2 + CO2 =>
Cu2CO3(OH)2 + 8 NH3 + 5 H2O = 2[Cu(NH3)4(H2O)2](OH)2 + CO2
Fe(CrO2) + HNO3 = Fe(NO3)3 + H2CrO4 + NO + H2O =>
3 Fe(CrO2) + 14 HNO3 = 3 Fe(NO3)3 + 3 H2CrO4 + 5 NO + 4 H2O
Fe(NO3)3(aq) + LiOH(aq) = LiNO3(aq) + Fe(OH)3 =>
Fe(NO3)3(aq) + 3 LiOH(aq) = 3 LiNO3(aq) + Fe(OH)3
CuCl2 + H = CuCl + HCl =>
CuCl2 + H = CuCl + HCl
MgO + SO2 = Mg2S + O3 =>
6 MgO + 3 SO2 = 3 Mg2S + 4 O3
Pb(NO3)2 + KOH = Pb(OH)2 + NO3K =>
Pb(NO3)2 + 2 KOH = Pb(OH)2 + 2 NO3K
C6H8O7 + NaHCO3 = Na + CO2 + H2O =>
C6H8O7 + 18 NaHCO3 = 18 Na + 24 CO2 + 13 H2O
ZnOH2O = Zn + O2 + H2O =>
2 ZnOH2O = 2 Zn + O2 + 2 H2O
AgClO4 + CaBr2 = AgBr2 + CaClO4 =>
AgClO4 + CaBr2 = AgBr2 + CaClO4
K2Cr2O7 + KI + HCl = CrCl3 + I2 + H3O + KCl =>
2 K2Cr2O7 + 26 KI + 42 HCl = 4 CrCl3 + 13 I2 + 14 H3O + 30 KCl
H3PO2 + AgNO3 + H2O = H3PO4 + Ag + HNO3 =>
H3PO2 + 4 AgNO3 + 2 H2O = H3PO4 + 4 Ag + 4 HNO3
BaCl2(aq) + FeSO4 = BaSO4 + FeCl2 =>
BaCl2(aq) + FeSO4 = BaSO4 + FeCl2
CaS = Ca + S =>
CaS = Ca + S
C2H2 = C + H2 =>
C2H2 = 2 C + H2
V(NO3)5 + Al = Al(NO3)3 + V =>
3 V(NO3)5 + 5 Al = 5 Al(NO3)3 + 3 V
CO2 + H2O = CH2O + O2 = C6H12O6 =>
CO2 + H2O = CH2O + O2
Mg + CuNO3 = Mg(NO3)2 + Cu =>
Mg + 2 CuNO3 = Mg(NO3)2 + 2 Cu
KI + Hg(C2H3O2)2 = KC2H3O2 + HgI2 =>
2 KI + Hg(C2H3O2)2 = 2 KC2H3O2 + HgI2
NaCl(aq) + Pb(NO3)2 = NaNO3 + PbCl2 =>
2 NaCl(aq) + Pb(NO3)2 = 2 NaNO3 + PbCl2
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
SmCl2 + KMnO4 + HCl = SmCl3 + KCl + MnCl2 + H2O =>
5 SmCl2 + KMnO4 + 8 HCl = 5 SmCl3 + KCl + MnCl2 + 4 H2O
RbI + H2SO4 = RbSO4 + IH2 =>
RbI + H2SO4 = RbSO4 + IH2
Ni + C2(NOH)2(CH3)2 = Ni[C2(NOH)2(CH3)2]2 =>
Ni + 2 C2(NOH)2(CH3)2 = Ni[C2(NOH)2(CH3)2]2
V(NO3)5 + Al = Al(NO3)3 + V =>
3 V(NO3)5 + 5 Al = 5 Al(NO3)3 + 3 V
Na2CrO4 + MgCl2 = NaCl + MgCrO4 =>
Na2CrO4 + MgCl2 = 2 NaCl + MgCrO4
Mg(OH)2 + HCl = MgCl2 + H2O =>
Mg(OH)2 + 2 HCl = MgCl2 + 2 H2O
KIO3 + SO2 + H2O = I2 + KHSO4 + H2SO4 =>
2 KIO3 + 5 SO2 + 4 H2O = I2 + 2 KHSO4 + 3 H2SO4
K2CO3CuSO4 = K2SO4CuCO3 =>
K2CO3CuSO4 = K2SO4CuCO3
Na2O + O2 = NaO =>
2 Na2O + O2 = 4 NaO
CH3(CH)2(CH2)CH3 + O2 = CO2 + H2O =>
2 CH3(CH)2(CH2)CH3 + 15 O2 = 10 CO2 + 10 H2O
NH4 + OH + HBr = H2O + NH4Br =>
NH4 + OH + HBr = H2O + NH4Br
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