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2 Fe3O4 + 10 H2SO4 = 3 Fe2(SO4)3 + 10 H2O + SO2
I2 + As + NaHCO3 = Na2HAsO4 + NaI + CO2 + H2O =>
5 I2 + 2 As + 14 NaHCO3 = 2 Na2HAsO4 + 10 NaI + 14 CO2 + 6 H2O
Al2O3 = Al + O2 =>
2 Al2O3 = 4 Al + 3 O2
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
K2C2O4*H2O + H2C2O4*2H2O + K2Cr2O7 = K3[Cr(C2O4)3]*3H2O + H2O + CO2 =>
2 K2C2O4*H2O + 7 H2C2O4*2H2O + K2Cr2O7 = 2 K3[Cr(C2O4)3]*3H2O + 17 H2O + 6 CO2
Mn + F = MnF =>
Mn + F = MnF
Ca + SO3 = Ca4S2O6 =>
4 Ca + 2 SO3 = Ca4S2O6
A + B2 = A(B2) =>
A + B2 = A(B2)
Ag + P = AgP =>
Ag + P = AgP
SeCl6 + O2 = SeO2 + Cl2 =>
SeCl6 + O2 = SeO2 + 3 Cl2
Na2S + HCl = NaCl + H2S =>
Na2S + 2 HCl = 2 NaCl + H2S
K + H2O + Al(NO3)3 = KNO3 + Al(OH)3 + H2 =>
6 K + 6 H2O + 2 Al(NO3)3 = 6 KNO3 + 2 Al(OH)3 + 3 H2
Ca3(PO4)2 + H2O + P4O10 = CaHPO4 =>
4 Ca3(PO4)2 + 6 H2O + P4O10 = 12 CaHPO4
K(s) + S2(s) = K2S(s) =>
4 K(s) + S2(s) = 2 K2S(s)
PbO + NH3 = Pb + N2 + H2O =>
3 PbO + 2 NH3 = 3 Pb + N2 + 3 H2O
Si3N4 + H2SO3 = SiO2 + H2S + N2 =>
Si3N4 + 2 H2SO3 = 3 SiO2 + 2 H2S + 2 N2
KMnO4 + H2S + H2O = MnO2 + KOH + H2SO4 =>
8 KMnO4 + 3 H2S + 4 H2O = 8 MnO2 + 8 KOH + 3 H2SO4
Na2(SO4)3 + AlCl = Na2Cl + Al(SO4)3 =>
Na2(SO4)3 + AlCl = Na2Cl + Al(SO4)3
AgNO3 + C6H8O7 = AgO + CO2 + N2 + H2O =>
18 AgNO3 + 4 C6H8O7 = 18 AgO + 24 CO2 + 9 N2 + 16 H2O
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Ni(ClO3)2 = NiCl2 + O2 =>
Ni(ClO3)2 = NiCl2 + 3 O2
Li2O + H2O = LiOH =>
Li2O + H2O = 2 LiOH
H4B204 + H2O + O2 = HBO3 =>
H4B204 + 100 H2O + 256 O2 = 204 HBO3
Zn + As2S3 + HCl = ZnCl2 + AsH3 + H2S =>
6 Zn + As2S3 + 12 HCl = 6 ZnCl2 + 2 AsH3 + 3 H2S
Fe + NaOH = Fe(OH)2 + Na =>
Fe + 2 NaOH = Fe(OH)2 + 2 Na
Hg + HCl = HgHCl =>
Hg + HCl = HgHCl
Fe + H2SO4 = Fe2(SO4)3 + H2 =>
2 Fe + 3 H2SO4 = Fe2(SO4)3 + 3 H2
FeCl3 + (NH4)2C2O4 = Fe2(C2O4)3 + NH4Cl =>
2 FeCl3 + 3(NH4)2C2O4 = Fe2(C2O4)3 + 6 NH4Cl
OCN{-} + H2O2 = N2 + CO2 + CO3{-2} + H2O =>
2 OCN{-} + 3 H2O2 = N2 + CO2 + CO3{-2} + 3 H2O
MnI2 + F2 = MnF3 + IF5 =>
2 MnI2 + 13 F2 = 2 MnF3 + 4 IF5
OsO4 + ZCl4 = ZO2 + OsCl8 =>
OsO4 + 2 ZCl4 = 2 ZO2 + OsCl8
Cr + O = CrO2 =>
Cr + 2 O = CrO2
Al2(SO4)3 + CaF2 = AlF3 + Ca(SO4) =>
Al2(SO4)3 + 3 CaF2 = 2 AlF3 + 3 Ca(SO4)
CaCO3 = CaO + CO2 =>
CaCO3 = CaO + CO2
Li + CaO = Ca + Li2O =>
2 Li + CaO = Ca + Li2O
CaOH2 + CuCl2 = CaCl2 + CuOH2 =>
CaOH2 + CuCl2 = CaCl2 + CuOH2
NaH + CO2 = Na4C + H2O =>
4 NaH + CO2 = Na4C + 2 H2O
PbO2(s) + HCl(aq) = Cl2(g) + PbCl2(aq) + H2O(l) =>
PbO2(s) + 4 HCl(aq) = Cl2(g) + PbCl2(aq) + 2 H2O(l)
Fe3O4 + H2SO4 = Fe2(SO4)3 + H2O + SO2 =>
2 Fe3O4 + 10 H2SO4 = 3 Fe2(SO4)3 + 10 H2O + SO2
NaHS + KOH = Na2S + H2O + K2S =>
2 NaHS + 2 KOH = Na2S + 2 H2O + K2S
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
HCl + Ca(CHO3)2 = H2O + CO2 + CaCl2 =>
2 HCl + Ca(CHO3)2 = 2 H2O + 2 CO2 + CaCl2
NiO3 + H2O = Ni(OH)2 + O2 =>
NiO3 + H2O = Ni(OH)2 + O2
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
CH3COOH + Ba(OH)2 = Ba(CH3COO)2 + H2O =>
2 CH3COOH + Ba(OH)2 = Ba(CH3COO)2 + 2 H2O
FeCl2 + Cl2 + KOH = Fe(OH)3 + KCl =>
2 FeCl2 + Cl2 + 6 KOH = 2 Fe(OH)3 + 6 KCl
ClO + HO2 = HClO3 =>
ClO + HO2 = HClO3
Na6V10O28 + KI + HCl = VOCl2 + I2 + NaCl + KCl + H2O =>
Na6V10O28 + 10 KI + 36 HCl = 10 VOCl2 + 5 I2 + 6 NaCl + 10 KCl + 18 H2O
NO3 = N + O2 =>
2 NO3 = 2 N + 3 O2
MgCl2 + NH3H2O = Mg(OH)2 + NH3 + HCl =>
MgCl2 + 2 NH3H2O = Mg(OH)2 + 2 NH3 + 2 HCl
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