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3 Fe + 4 H2O(g) = Fe3O4 + 4 H2(g)
B2S3 + O2 = B2O3 + SO2 =>
2 B2S3 + 9 O2 = 2 B2O3 + 6 SO2
K[Cr(C2O4)2(H2O)2] + NH3 = K[Cr(C2O4)2(H2O)(NH3)] + H2O =>
K[Cr(C2O4)2(H2O)2] + NH3 = K[Cr(C2O4)2(H2O)(NH3)] + H2O
C4H9 + O2 = CO2 + H2O =>
4 C4H9 + 25 O2 = 16 CO2 + 18 H2O
Zn + C2H5OH = Zn(C2H5O) + H2 =>
2 Zn + 2 C2H5OH = 2 Zn(C2H5O) + H2
HCO3 + F = CO3 + HF =>
HCO3 + F = CO3 + HF
I2 + Na2AsO3 + NaHCO3 = NaI + Na3AsO4 + CO2 + H2O =>
I2 + 2 Na2AsO3 + 4 NaHCO3 = 2 NaI + 2 Na3AsO4 + 4 CO2 + 2 H2O
Pd + FeSO4 = Pd(SO4)3 + Fe =>
Pd + 3 FeSO4 = Pd(SO4)3 + 3 Fe
Zn + H3PO3 = Zn3(PO3)2 + H2 =>
3 Zn + 2 H3PO3 = Zn3(PO3)2 + 3 H2
SnCl2 + HCl = SnCl + HCl2 =>
SnCl2 + HCl = SnCl + HCl2
KClO + HBr = KCl + H2O + Br =>
KClO + 2 HBr = KCl + H2O + 2 Br
AlCl3 + I2 = AlI3 + Cl =>
2 AlCl3 + 3 I2 = 2 AlI3 + 6 Cl
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
O2 = O3 =>
3 O2 = 2 O3
Y + Ni = Y2Ni17 =>
2 Y + 17 Ni = Y2Ni17
Cu + HClO4 = Cu(ClO4)2 + H =>
Cu + 2 HClO4 = Cu(ClO4)2 + 2 H
Na2SO4 + KOH = NaOH + K2SO4 =>
Na2SO4 + 2 KOH = 2 NaOH + K2SO4
Al(s) + NaOH(aq) + H2O(l) = Na[Al(OH)4](aq) + H2(g) =>
2 Al(s) + 2 NaOH(aq) + 6 H2O(l) = 2 Na[Al(OH)4](aq) + 3 H2(g)
C + SO3 = CS2 + CO2 =>
4 C + 2 SO3 = CS2 + 3 CO2
Al + NiCl2 = AlCl3 + Ni =>
2 Al + 3 NiCl2 = 2 AlCl3 + 3 Ni
C11H14O4N + O2 = CO2 + H2O + NH3 =>
4 C11H14O4N + 47 O2 = 44 CO2 + 22 H2O + 4 NH3
MgPO4NaF = MgFNaPO4 =>
MgPO4NaF = MgFNaPO4
(NH4)CO3 + KOH = KCO3 + NH4OH =>
(NH4)CO3 + KOH = KCO3 + NH4OH
CH3CH2CH3 + Br2 = CH3CH2CH3Br =>
2 CH3CH2CH3 + Br2 = 2 CH3CH2CH3Br
C6H6 + HNO3 = C6H3N3O6 + H2O =>
C6H6 + 3 HNO3 = C6H3N3O6 + 3 H2O
FeI2 = Fe + I =>
FeI2 = Fe + 2 I
C2H2 + CO2 = CO + H2O =>
C2H2 + 3 CO2 = 5 CO + H2O
FeCl3 + KSCN = FeSCN{2+} + KCl3{2-} =>
FeCl3 + KSCN = FeSCN{2+} + KCl3{2-}
Na2SiO3 + HCl = NaCl + H2SiO3 =>
Na2SiO3 + 2 HCl = 2 NaCl + H2SiO3
H2SO4 + Ca(OH)2 = H2(OH)2 + SO4Ca =>
H2SO4 + Ca(OH)2 = H2(OH)2 + SO4Ca
NaH + S = Na2S + H2S =>
2 NaH + 2 S = Na2S + H2S
J2 + K2S + KOH = KJ + K2SO4 + H2O =>
4 J2 + K2S + 8 KOH = 8 KJ + K2SO4 + 4 H2O
N2H4 + Zn + KOH + H2O = NH3 + K2(Zn(OH)4) =>
N2H4 + Zn + 2 KOH + 2 H2O = 2 NH3 + K2(Zn(OH)4)
Cr(OH)2 + HCl = CrCl3 + H2 + H2O =>
2 Cr(OH)2 + 6 HCl = 2 CrCl3 + H2 + 4 H2O
KNO2 + H2SO4 = H2O + K2SO4 + KNO3 + NO =>
3 KNO2 + H2SO4 = H2O + K2SO4 + KNO3 + 2 NO
K2[Sn(OH)6] = K2SnO3 + H2O =>
K2[Sn(OH)6] = K2SnO3 + 3 H2O
Pb(OH)2 + K2S = PbS + K(OH) =>
Pb(OH)2 + K2S = PbS + 2 K(OH)
HF + H2O = H3O + F =>
HF + H2O = H3O + F
Au(NO2)3 + BaCl2 = AuCl3 + Ba(NO2)2 =>
2 Au(NO2)3 + 3 BaCl2 = 2 AuCl3 + 3 Ba(NO2)2
Ba + Cu = BaCu =>
Ba + Cu = BaCu
CaCo3 + H2SO4 = CaSO4 + H2Co3 =>
CaCo3 + H2SO4 = CaSO4 + H2Co3
NaOH + NaBr = Na2BrOH =>
NaOH + NaBr = Na2BrOH
NH4F + CaO = (NH4)2O + CaF2 =>
2 NH4F + CaO = (NH4)2O + CaF2
MgCl2 + Al = MgAl + Cl2 =>
MgCl2 + Al = MgAl + Cl2
Al + HCOOH = Al(COOH)3 + H2 =>
2 Al + 6 HCOOH = 2 Al(COOH)3 + 3 H2
FeCl3 + KSCN = (FeSCN)Cl2 + KCl =>
FeCl3 + KSCN = (FeSCN)Cl2 + KCl
Pb + HF = PbF4 + H2 =>
Pb + 4 HF = PbF4 + 2 H2
NaOH + C3H7Cl = NaCl + C3H8O =>
NaOH + C3H7Cl = NaCl + C3H8O
SnO2 + H2 = Sn + H2O(g) =>
SnO2 + 2 H2 = Sn + 2 H2O(g)
S8 + CO = SO2 + C =>
S8 + 16 CO = 8 SO2 + 16 C
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