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3 Fe + 2 Al2S3 = 3 FeS2 + 4 Al
KCr(SO4)2 + Ba(NO3)2 = KNO3 + BaSO4 + Cr(NO3)3 =>
KCr(SO4)2 + 2 Ba(NO3)2 = KNO3 + 2 BaSO4 + Cr(NO3)3
C2H22O11 + O2 = H2O + CO2 =>
C2H22O11 + 2 O2 = 11 H2O + 2 CO2
Na2CO3 + HC2H3O2 = Na2C2 + HCO3H3O2 =>
Na2CO3 + HC2H3O2 = Na2C2 + HCO3H3O2
H2O + B2O3 = H3BO3 =>
3 H2O + B2O3 = 2 H3BO3
NaCH3CHOO + C2O4H2 = CH3CHOOH + Na2C2O4 =>
2 NaCH3CHOO + C2O4H2 = 2 CH3CHOOH + Na2C2O4
Ag + H2O2 = Ag2O + H2O =>
2 Ag + H2O2 = Ag2O + H2O
H3PO4 + Mg(OH0)2 = HOH + Mg3(PO4)2 =>
2 H3PO4 + 3 Mg(OH0)2 = 6 HOH + Mg3(PO4)2
Pb + H3PO4 = H2 + Pb6(PO4)2 =>
6 Pb + 2 H3PO4 = 3 H2 + Pb6(PO4)2
Bi2S3(s) + HNO3(aq) = Bi(NO3)3 + NO + S + H2O =>
Bi2S3(s) + 8 HNO3(aq) = 2 Bi(NO3)3 + 2 NO + 3 S + 4 H2O
Na2WO4 + HCl + Zn = W2O5 + NaCl + ZnO + H2O =>
2 Na2WO4 + 4 HCl + Zn = W2O5 + 4 NaCl + ZnO + 2 H2O
Zn + (NO3)2 = Zn(NO3)2 =>
Zn + (NO3)2 = Zn(NO3)2
H + SiO = HSiO =>
H + SiO = HSiO
I2 + Zn + H2O = ZnOH + HI =>
I2 + 2 Zn + 2 H2O = 2 ZnOH + 2 HI
Ag + Hg(NO3) = Hg + Ag(NO3)2 =>
Ag + 2 Hg(NO3) = 2 Hg + Ag(NO3)2
Mn + CaCO3 = MnO + Mn7C3 + CaO =>
13 Mn + 3 CaCO3 = 6 MnO + Mn7C3 + 3 CaO
CaS + (OH)2 + NH4OH = Ca(OH)2 + NH4S2 =>
4 CaS + 3(OH)2 + 2 NH4OH = 4 Ca(OH)2 + 2 NH4S2
C10H16 + Cl2 = C + HCl =>
C10H16 + 8 Cl2 = 10 C + 16 HCl
KI + C2H4O2 + K2Cr2O7 = I2 + CrCH3COO + KCH3COO + H2O =>
10 KI + 14 C2H4O2 + K2Cr2O7 = 5 I2 + 2 CrCH3COO + 12 KCH3COO + 7 H2O
Pb(ClO4)2 + NaOH = PbOH + (ClO4)2Na =>
Pb(ClO4)2 + NaOH = PbOH + (ClO4)2Na
Na(OH) + Pb(NO3)4 = Na(NO3) + Pb(OH)4 =>
4 Na(OH) + Pb(NO3)4 = 4 Na(NO3) + Pb(OH)4
ZnS(s) + O2 = ZnO(g) + SO2(g) =>
2 ZnS(s) + 3 O2 = 2 ZnO(g) + 2 SO2(g)
Tc2O7 + Nb(C7H5O2)5 = Tc(C7H5O2)7 + Nb2O5 =>
5 Tc2O7 + 14 Nb(C7H5O2)5 = 10 Tc(C7H5O2)7 + 7 Nb2O5
Ca3(PO4)2 + C = Ca3P2 + CO =>
Ca3(PO4)2 + 8 C = Ca3P2 + 8 CO
Mg + OH2 = H2 + MgO =>
Mg + OH2 = H2 + MgO
Ba + CuCl2 = BaCl + Cu =>
2 Ba + CuCl2 = 2 BaCl + Cu
Na + PbBr2 = NaBr + Pb =>
2 Na + PbBr2 = 2 NaBr + Pb
CuO + HBr = H2O + CuBr + Br =>
CuO + 2 HBr = H2O + CuBr + Br
ZnS + HCl = H2SZnCl2 =>
ZnS + 2 HCl = H2SZnCl2
(NH4)2S + KNO3 = K2S + NH4NO3 =>
(NH4)2S + 2 KNO3 = K2S + 2 NH4NO3
FeS + MnO4{-} + H{+} = MnO2 + SO4{2-} + FeOOH =>
FeS + 3 MnO4{-} + H{+} = 3 MnO2 + SO4{2-} + FeOOH
Pb + H2SO4 = H2S + H2O + PbSO4 =>
4 Pb + 5 H2SO4 = H2S + 4 H2O + 4 PbSO4
Na2S2O3 + Na2S2O7 = Na2SO4 + SO2 =>
Na2S2O3 + 3 Na2S2O7 = 4 Na2SO4 + 4 SO2
Cs2PO4 + Ba(OH)2 = CsOH + BaPO4 =>
Cs2PO4 + Ba(OH)2 = 2 CsOH + BaPO4
ClCN(g) + NH3(g) = N2(g) + HCN(g) + Cl2(g) =>
6 ClCN(g) + 2 NH3(g) = N2(g) + 6 HCN(g) + 3 Cl2(g)
PbNO3(aq) + NaCl(aq) = PbCl(s) + NaNO3 =>
PbNO3(aq) + NaCl(aq) = PbCl(s) + NaNO3
ClO{-}(aq) + I{-}(aq) = Cl{-}(aq) + IO{-}(aq) =>
ClO{-}(aq) + I{-}(aq) = Cl{-}(aq) + IO{-}(aq)
Li + AuCl{3+} = LiCl + Au{3+} =>
Li + AuCl{3+} = LiCl + Au{3+}
(NH3) + CUO = CU + N2 + H2O =>
2(NH3) + 3 CUO = 3 CU + N2 + 3 H2O
Al + FeO = Fe + Al2O3 =>
2 Al + 3 FeO = 3 Fe + Al2O3
Al + CuSO4 + NaCl = AlCl3 + Cu + Na2SO4 =>
2 Al + 3 CuSO4 + 6 NaCl = 2 AlCl3 + 3 Cu + 3 Na2SO4
AgNO3 + Zn(s) = Ag(s) + Zn(NO3)2 =>
2 AgNO3 + Zn(s) = 2 Ag(s) + Zn(NO3)2
Fe(NO3)3 + Ca = Fe + Ca(NO3)3 =>
Fe(NO3)3 + Ca = Fe + Ca(NO3)3
Al2(SO4)3 + H2O = Al(OH)3 + H2SO4 =>
Al2(SO4)3 + 6 H2O = 2 Al(OH)3 + 3 H2SO4
(C6H4(CH3)2) + O2 = CO2 + H2O =>
2(C6H4(CH3)2) + 21 O2 = 16 CO2 + 10 H2O
Cr(NO3)3*9H2O + HCl = CrCl3 + HNO3 + H2O =>
Cr(NO3)3*9H2O + 3 HCl = CrCl3 + 3 HNO3 + 9 H2O
KI(aq) + Pb(NO3)2(aq) = PbI2(s) + K(NO3)(aq) =>
2 KI(aq) + Pb(NO3)2(aq) = PbI2(s) + 2 K(NO3)(aq)
Au + NaCN + O2 + H2O = NaAu(CN)2 + NaOH =>
4 Au + 8 NaCN + O2 + 2 H2O = 4 NaAu(CN)2 + 4 NaOH
CaI2 + K2Cr2O7 + H2SO4 = I2 + Cr2S3O12 + CaSO4 + K2SO4 + H2O =>
3 CaI2 + K2Cr2O7 + 7 H2SO4 = 3 I2 + Cr2S3O12 + 3 CaSO4 + K2SO4 + 7 H2O
CuCO3 + Ca(OH)2 = Cu(OH)2CaCO3 =>
CuCO3 + Ca(OH)2 = Cu(OH)2CaCO3
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