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3 Fe + 2 O2 = Fe3O4
Al(NO3)3 + Na2O = Al2O3 + NaNO3 =>
2 Al(NO3)3 + 3 Na2O = Al2O3 + 6 NaNO3
C6H5COOH + CH3OH = C6H5COOCH3 + H2O =>
C6H5COOH + CH3OH = C6H5COOCH3 + H2O
Zn(NO3)2 = ZnO + NO2 + O2 =>
2 Zn(NO3)2 = 2 ZnO + 4 NO2 + O2
C2H4O + H2O = C2H6O2 =>
C2H4O + H2O = C2H6O2
Be(OH)2 + NaOH = Na2(Be(OH)4) =>
Be(OH)2 + 2 NaOH = Na2(Be(OH)4)
AgNO3(ag) + Zn(s) = Ag(s) + Zn(NO3)2 =>
2 AgNO3(ag) + Zn(s) = 2 Ag(s) + Zn(NO3)2
UO2HPO4 + TiCl3 + H2SO4 = U(SO4)2 + Ti(SO4)2 + H3PO4 + H2O + HCl =>
UO2HPO4 + 2 TiCl3 + 6 H2SO4 = U(SO4)2 + 2 Ti(SO4)2 + H3PO4 + 2 H2O + 6 HCl
Mg + Cl = MgCl2 =>
Mg + 2 Cl = MgCl2
HCOHH2O = CH3O2H =>
HCOHH2O = CH3O2H
KOH + NiSO4 = NiO2H2 + K2SO4 =>
2 KOH + NiSO4 = NiO2H2 + K2SO4
FeSO4 + NH2OH + H2SO4 = NH3 + Fe2(SO4)3 + H2O =>
2 FeSO4 + NH2OH + H2SO4 = NH3 + Fe2(SO4)3 + H2O
C6H5COOH + CH3OH = C6H5COOCH3 + H2O =>
C6H5COOH + CH3OH = C6H5COOCH3 + H2O
SbOHCl2 + H2O = Sb(OH)2Cl + HCl =>
SbOHCl2 + H2O = Sb(OH)2Cl + HCl
SiO2 + H2O = Si2H2 + O2 =>
4 SiO2 + 2 H2O = 2 Si2H2 + 5 O2
NH3 + Mg(NO3)2 + H2O = Mg(OH)2 + NH4NO3 =>
2 NH3 + Mg(NO3)2 + 2 H2O = Mg(OH)2 + 2 NH4NO3
CaCl2 + Cr(NO3)3 = Ca(NO3)2 + CrCl3 =>
3 CaCl2 + 2 Cr(NO3)3 = 3 Ca(NO3)2 + 2 CrCl3
CH2CHCH3(g) + H2(g) = CH3CH2CH2(g) =>
2 CH2CHCH3(g) + H2(g) = 2 CH3CH2CH2(g)
Co{+2} + [NCS]{-} = [CoNSC]{+} =>
Co{+2} + [NCS]{-} = [CoNSC]{+}
CaI2 + F2 = CaF2 + I2 =>
CaI2 + F2 = CaF2 + I2
Al + Cu2(SO4)3 = Cu + Al2(SO4)3 =>
2 Al + Cu2(SO4)3 = 2 Cu + Al2(SO4)3