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2 Au2S = 4 Au + S2
SO2 + K(OH) = K2(SO3) + H2O =>
SO2 + 2 K(OH) = K2(SO3) + H2O
CaCl2 + Mg(NO3)2 = Ca(NO3)2 + MgCl2 =>
CaCl2 + Mg(NO3)2 = Ca(NO3)2 + MgCl2
CdCl2 + O2 = CdO + Cl2 =>
2 CdCl2 + O2 = 2 CdO + 2 Cl2
Ag3As + AgNO3 + H2O = Ag + H3AsO3 + HNO3 =>
Ag3As + 3 AgNO3 + 3 H2O = 6 Ag + H3AsO3 + 3 HNO3
C3H7OH + Ca = (C3H7O)2Ca + H2 =>
2 C3H7OH + Ca = (C3H7O)2Ca + H2
NO2 + CaCO3 = Ca(NO3)2 + Ca(NO2)2 + CO2 =>
4 NO2 + 2 CaCO3 = Ca(NO3)2 + Ca(NO2)2 + 2 CO2
Na[Al(OH)4(H2O)2] + CO2 = Al(OH)3 + NaHCO3 + H2O =>
Na[Al(OH)4(H2O)2] + CO2 = Al(OH)3 + NaHCO3 + 2 H2O
NCl5 = N2 + Cl2 =>
2 NCl5 = N2 + 5 Cl2
Co + Mg(NO3)2 = Mg + Co(NO3)2 =>
Co + Mg(NO3)2 = Mg + Co(NO3)2
SeO + O2 = SeO3 =>
SeO + O2 = SeO3
CH3COOH + CaCO3 = (CH3COO)2Ca + CO2 + H2O =>
2 CH3COOH + CaCO3 = (CH3COO)2Ca + CO2 + H2O
Cl2(g) + NaBr(ag) = NaCl(ag) + Br2(l) =>
Cl2(g) + 2 NaBr(ag) = 2 NaCl(ag) + Br2(l)
Li2O + N2O5 = LiNO3 =>
Li2O + N2O5 = 2 LiNO3
[Zn(NH3)4]{2+} = Zn{2+} + NH3 =>
[Zn(NH3)4]{2+} = Zn{2+} + 4 NH3
HBr + MgF2 = MgBr2 + HF =>
2 HBr + MgF2 = MgBr2 + 2 HF
Fe(NO3)3 + H2 = HNO3 + Fe =>
2 Fe(NO3)3 + 3 H2 = 6 HNO3 + 2 Fe
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
Al2 + N = Al3N2 =>
3 Al2 + 4 N = 2 Al3N2
Cl2(g) + ZnI2(aq) = ZnCl2(aq) + I2(g) =>
Cl2(g) + ZnI2(aq) = ZnCl2(aq) + I2(g)
C3H8O7 + NaOH = NaC3H7O7 + H2O =>
C3H8O7 + NaOH = NaC3H7O7 + H2O
NaClO3 + H2C2O4 = ClO2 + CO2 + Na2C2O4 + H2O =>
2 NaClO3 + 2 H2C2O4 = 2 ClO2 + 2 CO2 + Na2C2O4 + 2 H2O
FeCl2 + H2SO4 = Fe2(SO4)2 + HCl =>
2 FeCl2 + 2 H2SO4 = Fe2(SO4)2 + 4 HCl
Fe + S4 = FeS =>
4 Fe + S4 = 4 FeS
N2O(g) + H2O(g) = NH4NO3 =>
N2O(g) + 2 H2O(g) = NH4NO3
Sb2S3 + Fe = Sb + FeS =>
Sb2S3 + 3 Fe = 2 Sb + 3 FeS
Ca2 + AgNO3 = CaNO3 + Ag =>
Ca2 + 2 AgNO3 = 2 CaNO3 + 2 Ag
C3H7OH + Ca = (C3H7O)2Ca + H2 =>
2 C3H7OH + Ca = (C3H7O)2Ca + H2
C6H5NO3 + H2O2 = CO2 + H2O + NO2 =>
2 C6H5NO3 + 27 H2O2 = 12 CO2 + 32 H2O + 2 NO2
Ba(NO3)2 + Mg(SO4) = BaSO4 + Mg(NO3)2 =>
Ba(NO3)2 + Mg(SO4) = BaSO4 + Mg(NO3)2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
CH5CH2OH + O2 = CO2 + H2O =>
2 CH5CH2OH + 7 O2 = 4 CO2 + 8 H2O
PCl5(s) + H2O(i) = H3PO4(ac) + HCl(g) =>
PCl5(s) + 4 H2O(i) = H3PO4(ac) + 5 HCl(g)
BeF2 + Mg = MgF2 + Be2 =>
2 BeF2 + 2 Mg = 2 MgF2 + Be2
UO4{+2} + H{+} + {-} = U{+4} + H2O =>
UO4{+2} + 8 H{+} + 6e = U{+4} + 4 H2O
AlN + BaO = AlO + BaN =>
AlN + BaO = AlO + BaN
NaOH + KHC8H5O4 = NaKC8H5O4 + H2O =>
NaOH + KHC8H5O4 = NaKC8H5O4 + H2O
Ni + NaOH = Ni(OH)2 + Na =>
Ni + 2 NaOH = Ni(OH)2 + 2 Na
KMnO4 + KIO3 + KOH = K2MnO4 + KIO4 + H2O =>
2 KMnO4 + KIO3 + 2 KOH = 2 K2MnO4 + KIO4 + H2O
CH3CH2CN + Cr2O7{-} + H{+} = CO2 + NH3 + Cr{3+} + H2O =>
CH3CH2CN + 2 Cr2O7{-} + 14 H{+} = 3 CO2 + NH3 + 4 Cr{3+} + 8 H2O
FeSO4*7H2O + H2SO4 + H2O2 = Fe2(SO4)3 + H2O =>
2 FeSO4*7H2O + H2SO4 + H2O2 = Fe2(SO4)3 + 16 H2O
PbS2 + H2O2 = Pb(SO4)2 + H2O =>
PbS2 + 8 H2O2 = Pb(SO4)2 + 8 H2O
SiCl4 + Al2O3 = SiO2 + AlCl3 =>
3 SiCl4 + 2 Al2O3 = 3 SiO2 + 4 AlCl3
C200H402 + O2 = CO2 + H2O =>
2 C200H402 + 601 O2 = 400 CO2 + 402 H2O
Ag2O(s) + C10H10N4SO2(s) = AgC10H9N4SO2(s) + H2O(l) =>
Ag2O(s) + 2 C10H10N4SO2(s) = 2 AgC10H9N4SO2(s) + H2O(l)
A2B3 = A + B2 =>
2 A2B3 = 4 A + 3 B2
IRON(III)CHLORIDE + LEAD(II)NITRATE = IRON(III)NITRATE + LEAD(II)CHLORIDE =>
IRON(III)CHLORIDE + LEAD(II)NITRATE = IRON(III)NITRATE + LEAD(II)CHLORIDE
Zn(s) + H2O(g) = ZnO(s) + H2(g) =>
Zn(s) + H2O(g) = ZnO(s) + H2(g)
Ni(OH)2 + H2(SO4) = NiSO4 + H2O =>
Ni(OH)2 + H2(SO4) = NiSO4 + 2 H2O
CH3OH + NaHCO3 = H2O + CO2 + NaC2H3O2 =>
4 CH3OH + 3 NaHCO3 = 5 H2O + CO2 + 3 NaC2H3O2
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