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4 Fe + 3 O2 = 2 Fe2O3
CH3COOH + MgCO3 = (CH3COO)2Mg + CO2 + H2O =>
2 CH3COOH + MgCO3 = (CH3COO)2Mg + CO2 + H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Ni(NO3)2 + NH3 = Ni(NH3)6 + NO3 =>
Ni(NO3)2 + 6 NH3 = Ni(NH3)6 + 2 NO3
CH3Br + Na + BrC2H5 = C3H8 + NaBr =>
CH3Br + 2 Na + BrC2H5 = C3H8 + 2 NaBr
Pt + HBr = PtBr4 + H2 =>
Pt + 4 HBr = PtBr4 + 2 H2
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
Ba + FeCl = Fe + BaCl2 =>
Ba + 2 FeCl = 2 Fe + BaCl2
Al2O3 + CO2 = Al2(CO3)3 =>
Al2O3 + 3 CO2 = Al2(CO3)3
Sb + H2O = Sb2O3 + H2 =>
2 Sb + 3 H2O = Sb2O3 + 3 H2
HCOONa + H2SO4 = HCOOH + NaHSO4 =>
HCOONa + H2SO4 = HCOOH + NaHSO4
C5H12O + O2 = CO2 + H2O =>
2 C5H12O + 15 O2 = 10 CO2 + 12 H2O
Ca(s) + ZnSO4(aq) = CaSO4 + Zn =>
Ca(s) + ZnSO4(aq) = CaSO4 + Zn
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
H3AsO4 + KOH = K3AsO4 + H2O =>
H3AsO4 + 3 KOH = K3AsO4 + 3 H2O
Mg(OH)2 + HNO3 = Mg(NO3)2 + H2O =>
Mg(OH)2 + 2 HNO3 = Mg(NO3)2 + 2 H2O
HCl + MnO2 = MnCl2 + Cl2 + H2O =>
4 HCl + MnO2 = MnCl2 + Cl2 + 2 H2O
Al2(SO4)3 + CaCl2 = AlCl3 + CaSO4 =>
Al2(SO4)3 + 3 CaCl2 = 2 AlCl3 + 3 CaSO4
Pb(NO3)4 + Fr3PO4 = Pb3(PO4)4 + FrNO3 =>
3 Pb(NO3)4 + 4 Fr3PO4 = Pb3(PO4)4 + 12 FrNO3
Ba2 + Cl = BaCl2 =>
Ba2 + 4 Cl = 2 BaCl2
MgSO4(aq) + AgClO4(aq) = Mg(ClO4)2(aq) + Ag2SO4(aq) =>
MgSO4(aq) + 2 AgClO4(aq) = Mg(ClO4)2(aq) + Ag2SO4(aq)
Na2SO4 + NH4I = NaI + (NH4)2SO4 =>
Na2SO4 + 2 NH4I = 2 NaI + (NH4)2SO4
NH4OH + H3PO4 = [NH4]3PO4 + H2O =>
3 NH4OH + H3PO4 = [NH4]3PO4 + 3 H2O
H3PO4 + HCl = PCl5 + H2O =>
H3PO4 + 5 HCl = PCl5 + 4 H2O
Cr2O3 + Na2CO3 + KNO3 = Na2CrO4 + KNO2 + CO2 =>
Cr2O3 + 2 Na2CO3 + 3 KNO3 = 2 Na2CrO4 + 3 KNO2 + 2 CO2
MnSO4(aq) + Na2S(aq) = MnS(s) + Na2SO4(aq) =>
MnSO4(aq) + Na2S(aq) = MnS(s) + Na2SO4(aq)
Al(OH)3 + (NH4)2S = NH3 + H2O + Al2S3 =>
2 Al(OH)3 + 3(NH4)2S = 6 NH3 + 6 H2O + Al2S3
HCOOK + K2Cr2O7 + H2SO4 = CO2 + Cr2(SO4)3 + K2SO4 + H2O =>
6 HCOOK + 2 K2Cr2O7 + 11 H2SO4 = 6 CO2 + 2 Cr2(SO4)3 + 5 K2SO4 + 14 H2O
CaCl2 + Cr(NO3)3 = Ca(NO3)2 + CrCl3 =>
3 CaCl2 + 2 Cr(NO3)3 = 3 Ca(NO3)2 + 2 CrCl3
ClO4{-} + Cl{-} = ClO{-3} + Cl2 =>
ClO4{-} + 11 Cl{-} = 4 ClO{-3} + 4 Cl2
FeSO4 = FeOSO3 =>
FeSO4 = FeOSO3
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
SO2H2O = SO3H2 =>
SO2H2O = SO3H2
CaO + Be3N2 = Ca3N2 + BeO =>
3 CaO + Be3N2 = Ca3N2 + 3 BeO
H2 + O2 = H2O2 =>
H2 + O2 = H2O2
Cr2O3 + Na2CO3 + KNO3 = Na2CrO4 + KNO2 + CO2 =>
Cr2O3 + 2 Na2CO3 + 3 KNO3 = 2 Na2CrO4 + 3 KNO2 + 2 CO2
Pb(NO3)2 + CaS = PbS + Ca(NO3)2 =>
Pb(NO3)2 + CaS = PbS + Ca(NO3)2
Na2Cr2O7 + HCl = NaCl + H2Cr2O7 =>
Na2Cr2O7 + 2 HCl = 2 NaCl + H2Cr2O7
HCl + NaMnO3 = NaCl + MnCl2 + H2O + Cl2 =>
12 HCl + 2 NaMnO3 = 2 NaCl + 2 MnCl2 + 6 H2O + 3 Cl2
Sb(OH)3 + H2SO4 = Sb2(SO4)3 + H2O =>
2 Sb(OH)3 + 3 H2SO4 = Sb2(SO4)3 + 6 H2O
P2S3 = P3 + S2 =>
6 P2S3 = 4 P3 + 9 S2
SnO + Cs = Cs2O + Sn =>
SnO + 2 Cs = Cs2O + Sn
Ag2CO3 + HCl = AgCl + H2CO3 =>
Ag2CO3 + 2 HCl = 2 AgCl + H2CO3
C8H16 + O2 = H2O + CO2 =>
C8H16 + 12 O2 = 8 H2O + 8 CO2
Cl2 + KBr = KCl + Br2 =>
Cl2 + 2 KBr = 2 KCl + Br2
NaClO + Cr(OH)3 = NaCl + H2CrO4 + H2O =>
3 NaClO + 2 Cr(OH)3 = 3 NaCl + 2 H2CrO4 + H2O
H5C3N3O9 = N2 + CO2 + H2O + O2 =>
4 H5C3N3O9 = 6 N2 + 12 CO2 + 10 H2O + O2
Fe3O4 + HNO3 = Fe(NO3)3 + H2O + NO2 =>
Fe3O4 + 10 HNO3 = 3 Fe(NO3)3 + 5 H2O + NO2
Ni(NO3)2 + NaOH = Ni(OH)2 + NaNO3 =>
Ni(NO3)2 + 2 NaOH = Ni(OH)2 + 2 NaNO3
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
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