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2 Pb + 2 HCI = 2 PbCI + H2
Fe3O4(s) = Fe2O3(s) + FeO(s) =>
Fe3O4(s) = Fe2O3(s) + FeO(s)
CuSO4 + K2S = CuS + K2SO4 =>
CuSO4 + K2S = CuS + K2SO4
CuSo4(aq) + Fe(s) = Cu(s) + FeSo4(aq) =>
CuSo4(aq) + Fe(s) = Cu(s) + FeSo4(aq)
LiClO4(aq) + SrI2(aq) = LiI(aq) + Sr(ClO4)2(s) =>
2 LiClO4(aq) + SrI2(aq) = 2 LiI(aq) + Sr(ClO4)2(s)
CrI3 + H2O2 + OH{-} = CrO42{-} + IO4{-} + H2O =>
CrI3 + 52 H2O2 + 4 OH{-} = CrO42{-} + 3 IO4{-} + 54 H2O
N2O4(g) = NO2(g) =>
N2O4(g) = 2 NO2(g)
Cu(NO3)2 + BaS = CuS + Ba(NO3)2 =>
Cu(NO3)2 + BaS = CuS + Ba(NO3)2
NiS2 + O2 = NiO + SO2 =>
2 NiS2 + 5 O2 = 2 NiO + 4 SO2
La200O300 + Ni100O100 + Fe200O300 + Ca100C100O300 = La70Ca30Fe80Ni20O300 + C100 + O200 =>
14 La200O300 + 8 Ni100O100 + 16 Fe200O300 + 12 Ca100C100O300 = 40 La70Ca30Fe80Ni20O300 + 12 C100 + 7 O200
MnO4{-} + SO2 + Br{-} = Mn{2+} + SO4{2-} + Br2 =>
2 MnO4{-} + 4 SO2 + 2 Br{-} = 2 Mn{2+} + 4 SO4{2-} + Br2
MgCl + ZnO = MgO + ZnCl =>
MgCl + ZnO = MgO + ZnCl
Pb(NO3)2 + Fe = Pb + Fe2NO3 =>
Pb(NO3)2 + 4 Fe = Pb + 2 Fe2NO3
HBr + Hg2(NO3) = NHO3 + Hg2Br =>
HBr + Hg2(NO3) = NHO3 + Hg2Br
S2*F2 = S8 + SF4 =>
16 S2*F2 = 3 S8 + 8 SF4
NiS + O = Ni2O3 + SO2 =>
2 NiS + 7 O = Ni2O3 + 2 SO2
Fe2(SO4)3(aq) + Ca(OH)2(aq) = Fe(OH)3 + Ca(SO4) =>
Fe2(SO4)3(aq) + 3 Ca(OH)2(aq) = 2 Fe(OH)3 + 3 Ca(SO4)
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Mn(s) + CuBr2(aq) = MnBr3(aq) + Cu(s) =>
2 Mn(s) + 3 CuBr2(aq) = 2 MnBr3(aq) + 3 Cu(s)
C6H10 + KMnO4 + H2O = C6H8O4 + KOH + MnO2 =>
3 C6H10 + 10 KMnO4 + 2 H2O = 3 C6H8O4 + 10 KOH + 10 MnO2
HCl + CaCO3 = CaCl2 + H2O + CO2 =>
2 HCl + CaCO3 = CaCl2 + H2O + CO2
H2SO4 + Pb(OH)3 = Pb2(SO4)3 + H2O =>
3 H2SO4 + 2 Pb(OH)3 = Pb2(SO4)3 + 6 H2O
CaWO4 + KF = K2WO4 + CaF2 =>
CaWO4 + 2 KF = K2WO4 + CaF2
Fe(CrO2)2 + KOH + O2 = Fe2O3 + K2CrO4 + H2O =>
4 Fe(CrO2)2 + 16 KOH + 7 O2 = 2 Fe2O3 + 8 K2CrO4 + 8 H2O
C2H4O(g) + O2 = C2H4O2(g) =>
2 C2H4O(g) + O2 = 2 C2H4O2(g)
HClO4 + P4O10 = H3PO4 + Cl2O7 =>
12 HClO4 + P4O10 = 4 H3PO4 + 6 Cl2O7
CN{-} + OH = CNO{-} + H2O =>
CN{-} + 2 OH = CNO{-} + H2O
Na2S2O5 + H2Cr2O7 + H2SO4 = Na2SO4 + Cr2(SO4)3 + H2O =>
3 Na2S2O5 + 2 H2Cr2O7 + 3 H2SO4 = 3 Na2SO4 + 2 Cr2(SO4)3 + 5 H2O
AgOAc + NaCl = AgCl + NaOAc =>
AgOAc + NaCl = AgCl + NaOAc
(a)Mg(OH)2 + HBr = MgBr2 + H2O =>
(a)Mg(OH)2 + 2 HBr = MgBr2 + 2 H2O
KI + NaNO2 + H2SO4 = I2 + K2SO4 + H2O + NO + Na2SO4 =>
2 KI + 2 NaNO2 + 2 H2SO4 = I2 + K2SO4 + 2 H2O + 2 NO + Na2SO4
Y(OH)3 + H2CO3 = Y(CO3)3 + H3O =>
Y(OH)3 + 3 H2CO3 = Y(CO3)3 + 3 H3O
NaNO3 = NaNO2 + O2 =>
2 NaNO3 = 2 NaNO2 + O2
AgCl + Fe = AgClFe =>
AgCl + Fe = AgClFe
N2O3 = N2 + O6 =>
2 N2O3 = 2 N2 + O6
Al + Hg2(NO3)2 = Al(NO3)3 + AlHg =>
8 Al + 3 Hg2(NO3)2 = 2 Al(NO3)3 + 6 AlHg
Sb + Cl{+3} = SbCl{3+} =>
Sb + Cl{+3} = SbCl{3+}
Na2S + CO2 + H2O = H2S + Na2CO3 =>
Na2S + CO2 + H2O = H2S + Na2CO3
Cu(OH)2*CuCO3 + SiO2 = CuO*SiO2 + CO2 + H2O =>
Cu(OH)2*CuCO3 + 2 SiO2 = 2 CuO*SiO2 + CO2 + H2O
MnO4 + Zn = ZnO + Mn =>
MnO4 + 4 Zn = 4 ZnO + Mn
CH3COOH + CaO = Ca(CH3COO)2 + H2O =>
2 CH3COOH + CaO = Ca(CH3COO)2 + H2O
C20H36 + Cl2 = C20H36Cl12 =>
C20H36 + 6 Cl2 = C20H36Cl12
H3AsO4 + Zn + H2SO3 = ZnSO4 + AsH3 + H2O =>
H3AsO4 + 2 Zn + 2 H2SO3 = 2 ZnSO4 + AsH3 + 2 H2O
MnO4{-} + Fe2{+} + H3O = Mn2{+} + Fe3{+} + H2O =>
2 MnO4{-} + 9 Fe2{+} + 16 H3O = Mn2{+} + 6 Fe3{+} + 24 H2O
Na + F2 = (NaF)3 =>
6 Na + 3 F2 = 2(NaF)3
BiI3 = Bi + I2 =>
2 BiI3 = 2 Bi + 3 I2
SO3 + NaOH = Na2S2O7 + H2O =>
2 SO3 + 2 NaOH = Na2S2O7 + H2O
I2O3 + CO = I2 + CO2 =>
I2O3 + 3 CO = I2 + 3 CO2
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
CrO3 + KI = Cr2O3 + K2CrO4 + I2 =>
5 CrO3 + 6 KI = Cr2O3 + 3 K2CrO4 + 3 I2
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