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6 Fe2S3 + 89 O2 = 4 Fe3O4 + 18 SO9
AgNO3 + NaCo3 = AgCo3NO3Na =>
AgNO3 + NaCo3 = AgCo3NO3Na
MgO2 + CO2 = Mg + CO3 =>
MgO2 + 2 CO2 = Mg + 2 CO3
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Cr(NO3)3(ag) + K2SO4(ag) = Cr2(SO4)3(ag) + KNO3(ag) =>
2 Cr(NO3)3(ag) + 3 K2SO4(ag) = Cr2(SO4)3(ag) + 6 KNO3(ag)
Al2O3*2H2O = Al2O3 + H2O =>
Al2O3*2H2O = Al2O3 + 2 H2O
C3 + O2 = C3O2 =>
C3 + O2 = C3O2
(NH4)2CO3 = NH3 + H2O + CO2 =>
(NH4)2CO3 = 2 NH3 + H2O + CO2
Li + NH3 = LiNH2 + H2 =>
2 Li + 2 NH3 = 2 LiNH2 + H2
CoCl2 + Na3PO4 = Co3(PO4)2 + NaCl =>
3 CoCl2 + 2 Na3PO4 = Co3(PO4)2 + 6 NaCl
CrSO3 = CrO + SO2 =>
CrSO3 = CrO + SO2
(C19H38O2)3*C3H5 + *CH3*OH = *C19H38O2*CH3 + C3H5(OH)3 =>
(C19H38O2)3*C3H5 + 3*CH3*OH = 3*C19H38O2*CH3 + C3H5(OH)3
LiHSO3 + HBr(aq) = LiBr + SO2 + H2O =>
LiHSO3 + HBr(aq) = LiBr + SO2 + H2O
TiCl4 = Ti + Cl2 =>
TiCl4 = Ti + 2 Cl2
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
FeO + H2SO4 = FeSO4 + H2O =>
FeO + H2SO4 = FeSO4 + H2O
NH4 + N = (NH4)3N =>
3 NH4 + N = (NH4)3N
HC2H3O2 + NaHCO3 = CO2 + NaC2H3O2 + H2O =>
HC2H3O2 + NaHCO3 = CO2 + NaC2H3O2 + H2O
FeCl3 + H2S = FeCl2 + HCl + S =>
2 FeCl3 + H2S = 2 FeCl2 + 2 HCl + S
Hg + O2 = HgO =>
2 Hg + O2 = 2 HgO
FeSO4 + KOH = Fe(OH)2 + K2SO4 =>
FeSO4 + 2 KOH = Fe(OH)2 + K2SO4
KHSO3 + Ca(OH)2 = Ca(HSO3)2 + KOH =>
2 KHSO3 + Ca(OH)2 = Ca(HSO3)2 + 2 KOH
Cl2O + H2O = H4Cl2O3 =>
Cl2O + 2 H2O = H4Cl2O3
C2H5COOH + Cu(OH)2 = Cu(C2H5COO)2 + H2O =>
2 C2H5COOH + Cu(OH)2 = Cu(C2H5COO)2 + 2 H2O
I2 + NaBH4 = B2H4 + NaI + H2 =>
I2 + 2 NaBH4 = B2H4 + 2 NaI + 2 H2
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
Ag + H2SO4 = Ag2(SO4)3 + H2O + SO2 =>
2 Ag + 6 H2SO4 = Ag2(SO4)3 + 6 H2O + 3 SO2
silver + iodine = silveriodide =>
2 Ag + I2 = 2 AgI
HClO4(aq) + Cu(OH)2(aq) = Cu(ClO4)2(aq) + H2O(l) =>
2 HClO4(aq) + Cu(OH)2(aq) = Cu(ClO4)2(aq) + 2 H2O(l)
CuCl4 + Cu = CuCl2 =>
CuCl4 + Cu = 2 CuCl2
BiO3{-} + Mn{2+} + H{+} = MnO4{-} + Bi{3+} + H2O =>
5 BiO3{-} + 2 Mn{2+} + 14 H{+} = 2 MnO4{-} + 5 Bi{3+} + 7 H2O
NaBr + CO2 = Na2O + CBr4 =>
4 NaBr + CO2 = 2 Na2O + CBr4
Ca(s) + AlCl3(s) = CaCl2(s) + Al(s) =>
3 Ca(s) + 2 AlCl3(s) = 3 CaCl2(s) + 2 Al(s)
Mg(NO3)2 + NaOH = MgO + Na + (NO3)2 + H =>
Mg(NO3)2 + NaOH = MgO + Na + (NO3)2 + H
C9H12 + Cl = C9H11Cl + HCl =>
C9H12 + 2 Cl = C9H11Cl + HCl
CuCl2 + Ag(NO3)2 = Cu(NO3)2 + AgCl2 =>
CuCl2 + Ag(NO3)2 = Cu(NO3)2 + AgCl2
Pb + H3PO4 = H2 + Pb3(PO4)2 =>
3 Pb + 2 H3PO4 = 3 H2 + Pb3(PO4)2
Ca3N2 + NH4Cl = CaCl2 + NH3 =>
Ca3N2 + 6 NH4Cl = 3 CaCl2 + 8 NH3
Bi2O3 + CO2 = Bi2(CO3)3 =>
Bi2O3 + 3 CO2 = Bi2(CO3)3
Pb(NO3)2(s) + HCl(aq) = PbCl2(s) + HNO3(aq) =>
Pb(NO3)2(s) + 2 HCl(aq) = PbCl2(s) + 2 HNO3(aq)
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
NiCl2 = Ni + Cl2 =>
NiCl2 = Ni + Cl2
B2Br6 + HNO3 = B(NO3)3 + HBr =>
B2Br6 + 6 HNO3 = 2 B(NO3)3 + 6 HBr
Al + Zn(NO3)2 = Al(NO3)3 + Zn =>
2 Al + 3 Zn(NO3)2 = 2 Al(NO3)3 + 3 Zn
K2SO4 + Al(NO3)3 = KNO3 + Al2(SO4)3 =>
3 K2SO4 + 2 Al(NO3)3 = 6 KNO3 + Al2(SO4)3
NaCO3 + AlCl = NaCl + AlCO3 =>
NaCO3 + AlCl = NaCl + AlCO3
Hf(cr) + N2(g) = Hf2N4 =>
2 Hf(cr) + 2 N2(g) = Hf2N4
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Al2O3 = Al + O2 =>
2 Al2O3 = 4 Al + 3 O2
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