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4 K + 2 Fe(NO3)2 = Fe2 + 4 KNO3
Mn + O2 = MnO3 =>
2 Mn + 3 O2 = 2 MnO3
CaC2O4 = Ca + CO2 =>
CaC2O4 = Ca + 2 CO2
NH3 + Mg = Mg3N + H2 =>
2 NH3 + 6 Mg = 2 Mg3N + 3 H2
HIO3 + NaHSO3 = NaHSO4 + I2 + H2O =>
2 HIO3 + 5 NaHSO3 = 5 NaHSO4 + I2 + H2O
Na2Cl + I2 = NaI + Cl =>
Na2Cl + I2 = 2 NaI + Cl
(NH4)2U2O7 + (NH4)2CO3 + H2O = (NH4)6[UO2(CO3)4] + NH4OH =>
(NH4)2U2O7 + 8(NH4)2CO3 + 3 H2O = 2(NH4)6[UO2(CO3)4] + 6 NH4OH
H2SO4 + MnSO4 + Pb3O4 = HMnO4 + PbSO4 + H2O =>
13 H2SO4 + 2 MnSO4 + 5 Pb3O4 = 2 HMnO4 + 15 PbSO4 + 12 H2O
Cr + H2O + NaOH = H2 + Na3[Cr(OH)6] =>
2 Cr + 6 H2O + 6 NaOH = 3 H2 + 2 Na3[Cr(OH)6]
NaNO3 + HNO3 = NaH(NO3)2 =>
NaNO3 + HNO3 = NaH(NO3)2
BaCl2 + MgNO3 = MgCl2 + BaNO3 =>
BaCl2 + MgNO3 = MgCl2 + BaNO3
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
FeO + H2SO4 = SO2 + Fe(SO4)3 + H2O =>
FeO + 5 H2SO4 = 2 SO2 + Fe(SO4)3 + 5 H2O
K2SO3 + HNO3 = KNO3 + SO2 + H2O =>
K2SO3 + 2 HNO3 = 2 KNO3 + SO2 + H2O
(CH3COO)2Ni + H2O = CH3COOH + Ni(OH)2 =>
(CH3COO)2Ni + 2 H2O = 2 CH3COOH + Ni(OH)2
Cu + C = Cu2C =>
2 Cu + C = Cu2C
HNO3 + KOH = H2O + K + NO3 =>
HNO3 + KOH = H2O + K + NO3
MnO2 + KNO3 + KOH = KMnO4 + KNO2 + H2O =>
2 MnO2 + 3 KNO3 + 2 KOH = 2 KMnO4 + 3 KNO2 + H2O
CaO4 + H2O = CaO2 + H2O2 =>
CaO4 + 2 H2O = CaO2 + 2 H2O2
H2SO3 + Li = Li2(SO3) + H2 =>
H2SO3 + 2 Li = Li2(SO3) + H2
Ca(OH)2Cl2 = CaOCl2H2O =>
Ca(OH)2Cl2 = CaOCl2H2O
Pb + H3PO4 = H2 + Pb3(PO4)2 =>
3 Pb + 2 H3PO4 = 3 H2 + Pb3(PO4)2
HNO3 + CuS = CuNO32 + H2O + NO + S =>
62 HNO3 + 3 CuS = 3 CuNO32 + 31 H2O + 59 NO + 3 S
MgCl2 + Pb(NO3)2 = Mg(NO3)2 + PbCl2(s) =>
MgCl2 + Pb(NO3)2 = Mg(NO3)2 + PbCl2(s)
MgO2 + Cl2 = MgCl2 + O2 =>
MgO2 + Cl2 = MgCl2 + O2
Mg + Fe{2+} = MgFe{2+} =>
Mg + Fe{2+} = MgFe{2+}
AgI(s) + HNO3(aq) = AgNO3(aq) + HI(aq) =>
AgI(s) + HNO3(aq) = AgNO3(aq) + HI(aq)
C2H5COOH + C3H7NH2 = C2H5COO{-} + C3H7NH3{+} =>
C2H5COOH + C3H7NH2 = C2H5COO{-} + C3H7NH3{+}
C2H6 + O2 = H2O + CO2 =>
2 C2H6 + 7 O2 = 6 H2O + 4 CO2
Cr2O72{-} + H{+} + I{-} = I2 + Cr3{+} + H2O =>
6 Cr2O72{-} + 864 H{+} + 854 I{-} = 427 I2 + 4 Cr3{+} + 432 H2O
NH4Cl + Fe2O3 = FeCl3 + NH3 + H2O =>
6 NH4Cl + Fe2O3 = 2 FeCl3 + 6 NH3 + 3 H2O
Cr2O3 + Al = Al2O3 + Cr =>
Cr2O3 + 2 Al = Al2O3 + 2 Cr
Al(OH)3 + Ba(NO3)2 = Ba(OH)2 + Al(NO3)3 =>
2 Al(OH)3 + 3 Ba(NO3)2 = 3 Ba(OH)2 + 2 Al(NO3)3
NaVO3 + Zn + H2SO4 = VSO4 + NaSO4 + ZnSO4 + H2O =>
NaVO3 + Zn + 3 H2SO4 = VSO4 + NaSO4 + ZnSO4 + 3 H2O
Ag + AgNO3 = Ag2O + NO2 =>
Ag + AgNO3 = Ag2O + NO2
NaHSO4 + Ca(OH)2 = CaSO4 + NaOH + H2O =>
NaHSO4 + Ca(OH)2 = CaSO4 + NaOH + H2O
AgNO3 + Na2SO4 = (Ag)2SO4 + NaNO3 =>
2 AgNO3 + Na2SO4 = (Ag)2SO4 + 2 NaNO3
K2Cr2O7 + HCl = KCl + H2O + CrCl3 + Cl2 =>
K2Cr2O7 + 14 HCl = 2 KCl + 7 H2O + 2 CrCl3 + 3 Cl2
S + Cl2 + H2O = H2SO4 + HCl =>
S + 3 Cl2 + 4 H2O = H2SO4 + 6 HCl
S + O2 = SO3 =>
2 S + 3 O2 = 2 SO3
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
HgCO3 + HCl = HgCl2 + CO2 + H2O =>
HgCO3 + 2 HCl = HgCl2 + CO2 + H2O
Zn + Pb3NO3 = Zn(NO3)2 + Pb =>
Zn + 2 Pb3NO3 = Zn(NO3)2 + 6 Pb
I3{-} + S2O3{-2} = I{-} + S4O6{-2} =>
I3{-} + 2 S2O3{-2} = 3 I{-} + S4O6{-2}
KH2PO4 + HOH = KOH + H3PO4 =>
KH2PO4 + HOH = KOH + H3PO4
SO2 + H2O = H2SO3 =>
SO2 + H2O = H2SO3
La + Ni + Fe = LaNi45Fe05 =>
La + 45 Ni + 5 Fe = LaNi45Fe05
CH3COONaAgNO3 = AgCOONaCH3NO3 =>
CH3COONaAgNO3 = AgCOONaCH3NO3
SO3 + NaOH = (Na)2SO4 + H2O =>
SO3 + 2 NaOH = (Na)2SO4 + H2O
CuBr2 + H2O = CuOH + HBr2 =>
CuBr2 + H2O = CuOH + HBr2
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