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3 Fe + 4 H2O = Fe3O4 + 4 H2
I4O9 = I2O6 + I2O2 =>
4 I4O9 = 5 I2O6 + 3 I2O2
Al + OH{-} + H2O + NO2 = NH3 + Al(OH)4{-} =>
7 Al + 7 OH{-} + 15 H2O + 3 NO2 = 3 NH3 + 7 Al(OH)4{-}
C5H12 + F2 = C3H7F + HF =>
3 C5H12 + 3 F2 = 5 C3H7F + HF
C2H2N2O4 + O2 = CO2 + H2O + N2 =>
2 C2H2N2O4 + O2 = 4 CO2 + 2 H2O + 2 N2
NaHCO3 = NaOH + CO2 =>
NaHCO3 = NaOH + CO2
Ca + I = Ca2I =>
2 Ca + I = Ca2I
C2H5NH3Br + H2O = C2H5NH2 + H3OBr =>
C2H5NH3Br + H2O = C2H5NH2 + H3OBr
Sn + CuF = SnF2 + Cu =>
Sn + 2 CuF = SnF2 + 2 Cu
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
Sb2O3 + C = Sb + CO =>
Sb2O3 + 3 C = 2 Sb + 3 CO
MoCl5 + Mo = Mo6Cl2 =>
2 MoCl5 + 28 Mo = 5 Mo6Cl2
C2H4 + O2 = CO2 + H2O =>
C2H4 + 3 O2 = 2 CO2 + 2 H2O
Pb + KOH = K2PbO2 + H2 =>
Pb + 2 KOH = K2PbO2 + H2
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
NaCN(aq) + HBr(aq) = HCN(aq) + NaBr(aq) =>
NaCN(aq) + HBr(aq) = HCN(aq) + NaBr(aq)
C6H10O4 + C2H6O = C10H18O4 + H2O =>
C6H10O4 + 2 C2H6O = C10H18O4 + 2 H2O
Al + H2SO4 = Al2(SO4)3 + H2 =>
2 Al + 3 H2SO4 = Al2(SO4)3 + 3 H2
Au + KCN + O2 + H2O = KAu(CN)2 + KOH =>
4 Au + 8 KCN + O2 + 2 H2O = 4 KAu(CN)2 + 4 KOH
C6H8O7H2O + NaOH = C6H5O7Na3 + H2O =>
C6H8O7H2O + 3 NaOH = C6H5O7Na3 + 4 H2O
HBr = H + Br =>
HBr = H + Br
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
SrBr2 + (NH4)2CO3 = SrCO3 + NH4Br =>
SrBr2 + (NH4)2CO3 = SrCO3 + 2 NH4Br
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Al + S8 = Al2S3 =>
16 Al + 3 S8 = 8 Al2S3
Cu(NO3)2 + KOH = Cu(OH)2 + KNO3 =>
Cu(NO3)2 + 2 KOH = Cu(OH)2 + 2 KNO3
MnO4{-} + SO3{2-} + H2O = MnO2 + SO4{2-} + OH{-} =>
2 MnO4{-} + 3 SO3{2-} + H2O = 2 MnO2 + 3 SO4{2-} + 2 OH{-}
HSbCl6 + H2S = S + Sb2S3 + HCl =>
2 HSbCl6 + 5 H2S = 2 S + Sb2S3 + 12 HCl
C2H2N2O4 + O2 = CO2 + H2O + N2 =>
2 C2H2N2O4 + O2 = 4 CO2 + 2 H2O + 2 N2
C6H10 + KMnO4 + H2O = C6H12O2 + MnO2 + KOH =>
3 C6H10 + 2 KMnO4 + 4 H2O = 3 C6H12O2 + 2 MnO2 + 2 KOH
Os + H2SO4 = OsSO4 + H2 =>
Os + H2SO4 = OsSO4 + H2
NH3 + H2O = NH4 + OH =>
NH3 + H2O = NH4 + OH
LiHSO4 + Sr(OH)2 = H2O + LiOH + SrSO4 =>
LiHSO4 + Sr(OH)2 = H2O + LiOH + SrSO4
BaCl2(aq) + K2CO3(aq) = BaCO3(s) + KCl(aq) =>
BaCl2(aq) + K2CO3(aq) = BaCO3(s) + 2 KCl(aq)
NaOH + Cl2 = NaCl + NaClO + H2O =>
2 NaOH + Cl2 = NaCl + NaClO + H2O
Ca(OH)2 + H3PO4 = Ca3(PO4)2 + H2O =>
3 Ca(OH)2 + 2 H3PO4 = Ca3(PO4)2 + 6 H2O
SiO2(s) + HF(aq) = SiF4(s) + H2O(l) =>
SiO2(s) + 4 HF(aq) = SiF4(s) + 2 H2O(l)
Na2S + Cu(CH3COO)2 = CuS + Na(CH3COO) =>
Na2S + Cu(CH3COO)2 = CuS + 2 Na(CH3COO)
NaNO3 + NiSO4 = Na2SO4 + Ni(NO3)2 =>
2 NaNO3 + NiSO4 = Na2SO4 + Ni(NO3)2
KI + KClO3 + H2SO4 = KCl + I + K2SO4 + H2O =>
6 KI + KClO3 + 3 H2SO4 = KCl + 6 I + 3 K2SO4 + 3 H2O
Cu + N + O3 = Cu2(NO3) =>
2 Cu + N + O3 = Cu2(NO3)
Fe2 + PbSO4 = FeSO4 + Pb =>
Fe2 + 2 PbSO4 = 2 FeSO4 + 2 Pb
PbOH2SO4 = PbSO4H2O =>
PbOH2SO4 = PbSO4H2O
CuSO4 + Fe2O3 = CuSO4O3 + Fe =>
CuSO4 + Fe2O3 = CuSO4O3 + 2 Fe
H2SO3 + I2 + H2O = HH2SO4 + HI =>
2 H2SO3 + I2 + 2 H2O = 2 HH2SO4 + 2 HI
CH4 + *O2 = CO2 + H2O =>
CH4 + 2*O2 = CO2 + 2 H2O
CaBr2(aq) + Na2CO3(aq) = CaCO3(s) + NaBr(aq) =>
CaBr2(aq) + Na2CO3(aq) = CaCO3(s) + 2 NaBr(aq)
Fe2O3 + C = CO + Fe =>
Fe2O3 + 3 C = 3 CO + 2 Fe
C6H5COOH + O2 = CO2 + H2O =>
2 C6H5COOH + 15 O2 = 14 CO2 + 6 H2O
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