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2 Cu2O + Cu2S = 6 Cu + SO2
Cl2(s) + KI(aq) = I2(g) + KCl(aq) =>
Cl2(s) + 2 KI(aq) = I2(g) + 2 KCl(aq)
Li3PO4(aq) + Al(NO3)3(aq) = LiNO3 + Al3(PO4)3 =>
3 Li3PO4(aq) + 3 Al(NO3)3(aq) = 9 LiNO3 + Al3(PO4)3
CuSO4 + HCl = CuCl2 + H2SO4 =>
CuSO4 + 2 HCl = CuCl2 + H2SO4
Sr3(PO4)2 = SrO + P2O5 =>
Sr3(PO4)2 = 3 SrO + P2O5
H3AsO4 = As2O5 + H2O =>
2 H3AsO4 = As2O5 + 3 H2O
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
Be + HClO3 = H2 + BeClO3 =>
2 Be + 2 HClO3 = H2 + 2 BeClO3
HCHO + Cr2O72{-} + H{+} = HCOOH + Cr3{+} + H2O =>
427 HCHO + 6 Cr2O72{-} + 10 H{+} = 427 HCOOH + 4 Cr3{+} + 5 H2O
Cu + HCl + H2O = [Cu(H2O)4]Cl + H2 =>
2 Cu + 2 HCl + 8 H2O = 2[Cu(H2O)4]Cl + H2
Ca2(SO3)2 + KCl = CaCl2 + K2SO3 =>
Ca2(SO3)2 + 4 KCl = 2 CaCl2 + 2 K2SO3
HCl + Sr(OH)2 = SrCl2 + HOH =>
2 HCl + Sr(OH)2 = SrCl2 + 2 HOH
NH3 + Ca(HCO3)2 = NH4HCO3 + CaCO3 =>
NH3 + Ca(HCO3)2 = NH4HCO3 + CaCO3
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
Me + HCl = MeCl3 + H2 =>
2 Me + 6 HCl = 2 MeCl3 + 3 H2
C2H2O4 + KOH = C2K2O4 + H2O =>
C2H2O4 + 2 KOH = C2K2O4 + 2 H2O
Zn + NaOH = Na2ZnO2 + H2 =>
Zn + 2 NaOH = Na2ZnO2 + H2
Ca3(PO4)2 + CaF2 = Ca10(PO4)6F2 =>
3 Ca3(PO4)2 + CaF2 = Ca10(PO4)6F2
Bi + HBr = BiBr + H2 =>
2 Bi + 2 HBr = 2 BiBr + H2
Ag2S = Ag + S8 =>
8 Ag2S = 16 Ag + S8
FeO(s) + O2(g) = Fe2O3(s) =>
4 FeO(s) + O2(g) = 2 Fe2O3(s)
C3H6O3 + NaOH = NaC3H5O3 + H2O =>
C3H6O3 + NaOH = NaC3H5O3 + H2O
I2 + Na2S = NaI + S =>
I2 + Na2S = 2 NaI + S
Fe(NO3)3 + KOH = Fe(OH)3 + KNO3 =>
Fe(NO3)3 + 3 KOH = Fe(OH)3 + 3 KNO3
Ca + NaI = CaNa + I =>
Ca + NaI = CaNa + I
NaAl(OH)4 + H2SO4 = H2O + Al2(SO4)3 + NaOH =>
2 NaAl(OH)4 + 3 H2SO4 = 6 H2O + Al2(SO4)3 + 2 NaOH
FeF2 + Na = NaF + Fe =>
FeF2 + 2 Na = 2 NaF + Fe
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
CH3COOHNaOH = CH3COONaH2O =>
CH3COOHNaOH = CH3COONaH2O
CrCl3 + K2CO3 = Cr2(CO3)3 + KCl =>
2 CrCl3 + 3 K2CO3 = Cr2(CO3)3 + 6 KCl
FeCl2 + Ca(oh)2 = Fe(oh)3 + CaCl2 =>
6 FeCl2 + 3 Ca(oh)2 = 2 Fe(oh)3 + 6 CaCl2
I2 + HNO3 = HIO3 + NO2 + H2O =>
I2 + 10 HNO3 = 2 HIO3 + 10 NO2 + 4 H2O
PBr5 = P + Br5 =>
PBr5 = P + Br5
BaCO3 + Fe(OH)2 = FeCO3 + Ba(OH)2 =>
BaCO3 + Fe(OH)2 = FeCO3 + Ba(OH)2
NaOH(s) + Cl2(g) = NaClO(s) + NaCl(s) + H2O(l) =>
2 NaOH(s) + Cl2(g) = NaClO(s) + NaCl(s) + H2O(l)
Cu2S + O2 = Cu2O + SO2 =>
2 Cu2S + 3 O2 = 2 Cu2O + 2 SO2
AlBr3 + (NH4)2Cr2O7 = Al2(Cr2O7)3 + NH4Br =>
2 AlBr3 + 3(NH4)2Cr2O7 = Al2(Cr2O7)3 + 6 NH4Br
Cu(NO3)2 + NaI = CuI2 + Na(NO3) =>
Cu(NO3)2 + 2 NaI = CuI2 + 2 Na(NO3)
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
C12H22O12(s) + O2(g) = CO2(g) + H2O(g) =>
2 C12H22O12(s) + 23 O2(g) = 24 CO2(g) + 22 H2O(g)
CH3CH2OH = CH3CHO + H2 =>
CH3CH2OH = CH3CHO + H2
Ca(H2PO4)2 + NaOH = CaHPO4 + Na2HPO4 + H2O =>
Ca(H2PO4)2 + 2 NaOH = CaHPO4 + Na2HPO4 + 2 H2O
AgBr + GaPO4 = Ag3PO4 + GaBr3 =>
3 AgBr + GaPO4 = Ag3PO4 + GaBr3
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Ag2S + Al = Ag + Al2S3 =>
3 Ag2S + 2 Al = 6 Ag + Al2S3
C3H6 + O2 = CO2 + H2O =>
2 C3H6 + 9 O2 = 6 CO2 + 6 H2O
F2 + K2S = KF + S8 =>
8 F2 + 8 K2S = 16 KF + S8
MnO4{-} + SO2 + H2O = Mn2{+} + SO4{-}2 + H{+} =>
6 MnO4{-} + 13 SO2 + 2 H2O = 3 Mn2{+} + 13 SO4{-}2 + 4 H{+}
C2H2O4 + K2C2O4 + K2Cr2O7 = K3[Cr(C2O4)3] + O2 + H2O =>
8 C2H2O4 + 4 K2C2O4 + 2 K2Cr2O7 = 4 K3[Cr(C2O4)3] + 3 O2 + 8 H2O
MnO + PbO2 + H2O = MnO4{-} + Pb2{+} + H{+} =>
7 MnO + 10 PbO2 + H2O = 7 MnO4{-} + 5 Pb2{+} + 2 H{+}
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