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3 H2S + Fe2O3 = 2 FeS + S + 3 H2O
CuCl2(aq) + NH3(aq) = [Cu(NH3)4]Cl2 =>
CuCl2(aq) + 4 NH3(aq) = [Cu(NH3)4]Cl2
N2O5 + SO2 = SO3 + NO =>
N2O5 + 3 SO2 = 3 SO3 + 2 NO
Na3PO4(aq) + KNO3(aq) = NaNO3(aq) + K3PO4(aq) =>
Na3PO4(aq) + 3 KNO3(aq) = 3 NaNO3(aq) + K3PO4(aq)
NaBH4 + HCl = NaCl + BCl3 + H2 =>
NaBH4 + 4 HCl = NaCl + BCl3 + 4 H2
C6H6 + H2SO4 = HC6H5SO3 + H2O =>
C6H6 + H2SO4 = HC6H5SO3 + H2O
KSO4 = K2 + SO4 =>
2 KSO4 = K2 + 2 SO4
C17H36 + O2 = CO2 + H2O =>
C17H36 + 26 O2 = 17 CO2 + 18 H2O
Na2Co3(ac) + CaCl2(ac) = NaCl + CaCo3 =>
Na2Co3(ac) + CaCl2(ac) = 2 NaCl + CaCo3
HClO3 + Al(OH)3 = Al(ClO3)3 + H2O =>
3 HClO3 + Al(OH)3 = Al(ClO3)3 + 3 H2O
Zn(s) + N2(g) = Zn3N2 =>
3 Zn(s) + N2(g) = Zn3N2
Pb(NO3)2 + (NH4)3(PO4) = Pb3(PO4)2 + NH4NO3 =>
3 Pb(NO3)2 + 2(NH4)3(PO4) = Pb3(PO4)2 + 6 NH4NO3
Pb(NO3)2 + CaI2 = PbI2 + Ca(NO3)2 =>
Pb(NO3)2 + CaI2 = PbI2 + Ca(NO3)2
AlCl3O9 = Al + Cl + O =>
AlCl3O9 = Al + 3 Cl + 9 O
NiSO4 + NaOH + CaOCl2 + H2O = CaCl2 + Ni(OH)3 + Na2SO4 =>
2 NiSO4 + 4 NaOH + CaOCl2 + H2O = CaCl2 + 2 Ni(OH)3 + 2 Na2SO4
Cl2 + AuI = AuCl + I2 =>
Cl2 + 2 AuI = 2 AuCl + I2
KI + Ag(NO3)3 = K(NO3) + AgI3 =>
3 KI + Ag(NO3)3 = 3 K(NO3) + AgI3
K2HPO4 = K3PO4 + H2O + P2O5 =>
6 K2HPO4 = 4 K3PO4 + 3 H2O + P2O5
C4H10O4 + H2SO4 + NH4NO3 = C4H6N4O12 + (NH4)2SO4 + H2O =>
C4H10O4 + 2 H2SO4 + 4 NH4NO3 = C4H6N4O12 + 2(NH4)2SO4 + 4 H2O
Fe2(SO4)3 + K4(Fe(CN)6) = Fe4(Fe(CN)6)3 + K2SO4 =>
2 Fe2(SO4)3 + 3 K4(Fe(CN)6) = Fe4(Fe(CN)6)3 + 6 K2SO4
H2SO4 + K(OH) = K2(SO4) + H2O =>
H2SO4 + 2 K(OH) = K2(SO4) + 2 H2O
C4H9OH + KMnO4 = C4H8O + MnO2 + KOH + H2O =>
3 C4H9OH + 2 KMnO4 = 3 C4H8O + 2 MnO2 + 2 KOH + 2 H2O
Pb + Na2CO3 = PbCO3 + Na =>
Pb + Na2CO3 = PbCO3 + 2 Na
N2 + BaO = Ba2N3 + O2 =>
3 N2 + 4 BaO = 2 Ba2N3 + 2 O2
CH3Cl + Si = CH3SiCl3 + C2H6 =>
3 CH3Cl + Si = CH3SiCl3 + C2H6
Ca(HS)2 + H2SO4 = CaSO4 + SO2 + H2O =>
Ca(HS)2 + 7 H2SO4 = CaSO4 + 8 SO2 + 8 H2O
FeC2O4*2H2O = FeCO3 + H2O + CO =>
FeC2O4*2H2O = FeCO3 + 2 H2O + CO
CaCl2*2H2O = CaCl2 + H2O =>
CaCl2*2H2O = CaCl2 + 2 H2O
AgF = Ag + F2 =>
2 AgF = 2 Ag + F2
Cl2O7 + Ca(OH)2 = Ca(ClO4)2 + H2O =>
Cl2O7 + Ca(OH)2 = Ca(ClO4)2 + H2O
ZnBr2(aq) + NaOH(aq) = Zn(OH)2(s) + NaBr(aq) =>
ZnBr2(aq) + 2 NaOH(aq) = Zn(OH)2(s) + 2 NaBr(aq)
Ag2SO3 = Ag2O + SO2 =>
Ag2SO3 = Ag2O + SO2
C7H6O3(l) + O2(g) = CO2(g) + H2O(g) =>
C7H6O3(l) + 7 O2(g) = 7 CO2(g) + 3 H2O(g)
Fe(NO3)3(aq) + Na2SO4(aq) = Fe2(SO4)3 + NaNO3 =>
2 Fe(NO3)3(aq) + 3 Na2SO4(aq) = Fe2(SO4)3 + 6 NaNO3
CaF2 + Cl2 = CaCl2 + F =>
CaF2 + Cl2 = CaCl2 + 2 F
Fe{3+} + Br{-} = FeBr3 =>
Fe{3+} + 3 Br{-} = FeBr3
K2SO4(aq) + Ba(NO3)2 = BaSO4(s) + KNO3(aq) =>
K2SO4(aq) + Ba(NO3)2 = BaSO4(s) + 2 KNO3(aq)
Na3[Al(OH)6] + H2SO4 = Al(OH)3 + Na2SO4 + H2O =>
2 Na3[Al(OH)6] + 3 H2SO4 = 2 Al(OH)3 + 3 Na2SO4 + 6 H2O
Mn(OH)2 + O2 = MnO(OH)2 =>
2 Mn(OH)2 + O2 = 2 MnO(OH)2
CH3COOH + FeCl3 = Fe(CH3COOH)3 + Cl =>
3 CH3COOH + FeCl3 = Fe(CH3COOH)3 + 3 Cl
NH2OH + H2O = NH4 + OH =>
NH2OH + 2 H2O = NH4 + 3 OH
N2 + S2 = N2S =>
2 N2 + S2 = 2 N2S
Fe + H2O2 = Fe2O3 + H2O =>
2 Fe + 3 H2O2 = Fe2O3 + 3 H2O
CuCu + HNO3 = Cu(NO3)2 + NO2 + H2O =>
CuCu + 8 HNO3 = 2 Cu(NO3)2 + 4 NO2 + 4 H2O
Al2S3 + H2O = Al(OH)3 + H2S =>
Al2S3 + 6 H2O = 2 Al(OH)3 + 3 H2S
(NH4)2SO3 + HNO3 = NO2 + SO + H2O =>
(NH4)2SO3 + 12 HNO3 = 14 NO2 + SO + 10 H2O
C + Hl = CHl =>
C + Hl = CHl
CuSO4(aq) + Ba(OH)2(aq) = Cu(OH)2(s) + BaSO4(aq) =>
CuSO4(aq) + Ba(OH)2(aq) = Cu(OH)2(s) + BaSO4(aq)
CoCl2 + Al(NO3)3 = Co(NO3)2 + AlCl3 =>
3 CoCl2 + 2 Al(NO3)3 = 3 Co(NO3)2 + 2 AlCl3
AsH3 + I2 + H2O = H3AsO4 + I{-} + H{+} =>
AsH3 + 4 I2 + 4 H2O = H3AsO4 + 8 I{-} + 8 H{+}
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