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2 K + Ag2S = K2S + 2 Ag
C2H4 + KMnO4 + H2SO4 + H2O = C2H6O2 + MnO2 + K2SO4 =>
3 C2H4 + 2 KMnO4 + H2SO4 + 2 H2O = 3 C2H6O2 + 2 MnO2 + K2SO4
Al + K(OH) + H2O = KAl(OH)4 + H2 =>
2 Al + 2 K(OH) + 6 H2O = 2 KAl(OH)4 + 3 H2
HCl + (NH4)OH = (NH4)Cl + H2O =>
HCl + (NH4)OH = (NH4)Cl + H2O
Na2CO3 + CaO + H2O = CaCO3 + NaOH =>
Na2CO3 + CaO + H2O = CaCO3 + 2 NaOH
Au + KNO3 = K2 + AuNO3 =>
2 Au + 2 KNO3 = K2 + 2 AuNO3
CH3OOH + K2CO3 = CH3COOK + CO2 + H2O =>
4 CH3OOH + K2CO3 = 2 CH3COOK + CO2 + 5 H2O
Ni + (PO4) = Ni(PO4) =>
Ni + (PO4) = Ni(PO4)
Na2Cr2O7 + H2SO4 = NaHSO4 + CrO3 + H2O =>
Na2Cr2O7 + 2 H2SO4 = 2 NaHSO4 + 2 CrO3 + H2O
Ni(NO3)2 + CH4N2O = NiO + CO2 + H2O + N2 =>
3 Ni(NO3)2 + 5 CH4N2O = 3 NiO + 5 CO2 + 10 H2O + 8 N2
KF + PbO2 = PbF4 + K2O =>
4 KF + PbO2 = PbF4 + 2 K2O
C8H10O2N4 + O2 = CO2 + H2O + NO2 =>
2 C8H10O2N4 + 27 O2 = 16 CO2 + 10 H2O + 8 NO2
C10H22 + O = CO2 + H2O =>
C10H22 + 31 O = 10 CO2 + 11 H2O
Na2S2O3 + I2 = Na + SI2 + SO3 =>
Na2S2O3 + I2 = 2 Na + SI2 + SO3
NiSO4 + Zn = Ni + SO4Zn =>
NiSO4 + Zn = Ni + SO4Zn
K3[Fe(CN)6] + FeZn + H2SO4 = Fe3[Fe(CN)6] + Zn + K2SO4 + H2 =>
2 K3[Fe(CN)6] + 6 FeZn + 3 H2SO4 = 2 Fe3[Fe(CN)6] + 6 Zn + 3 K2SO4 + 3 H2
H2SiO3 + Ba(OH)2 = (BaOH)2SiO3 + H2O =>
H2SiO3 + 2 Ba(OH)2 = (BaOH)2SiO3 + 2 H2O
Zn + Fe{3+} = Zn{2+} + Fe{+} =>
Zn + Fe{3+} = Zn{2+} + Fe{+}
Li3PO4(aq) + BaCl2(aq) = LiCl(aq) + Ba3(PO4)2 =>
2 Li3PO4(aq) + 3 BaCl2(aq) = 6 LiCl(aq) + Ba3(PO4)2
Ni(OH)2 + NH4Cl + NH3 = [Ni(NH3)6]Cl2 + H2O =>
Ni(OH)2 + 2 NH4Cl + 4 NH3 = [Ni(NH3)6]Cl2 + 2 H2O
CaBr2 + Cl2 = CaCl2 + Br =>
CaBr2 + Cl2 = CaCl2 + 2 Br
Ag + Au(NO3)3 = Au + AgNO3 =>
3 Ag + Au(NO3)3 = Au + 3 AgNO3
K(NO3) + CrF3 = KF + Cr(NO3)3 =>
3 K(NO3) + CrF3 = 3 KF + Cr(NO3)3
Na3(PO4)12H2O + Zn(C2H3O2)2H2O = Zn3(PO4)24H2O + NaC2H3O2 + H2O =>
2 Na3(PO4)12H2O + 3 Zn(C2H3O2)2H2O = Zn3(PO4)24H2O + 6 NaC2H3O2 + 4 H2O
H2CO3(aq) + Mg(OH)2(aq) = MgCO3 + H2O =>
H2CO3(aq) + Mg(OH)2(aq) = MgCO3 + 2 H2O
Li3PO4 + NaBr = Na3PO4 + LiBr =>
Li3PO4 + 3 NaBr = Na3PO4 + 3 LiBr
Br2(aq) + NaI(aq) = NaBr(aq) + I2 =>
Br2(aq) + 2 NaI(aq) = 2 NaBr(aq) + I2
MgO + CO2 + H2O = (MgOH)2CO3 =>
2 MgO + CO2 + H2O = (MgOH)2CO3
FeC2O4*2H2O + C2O4 = Fe(C2O4)2 + H2O =>
FeC2O4*2H2O + C2O4 = Fe(C2O4)2 + 2 H2O
As2O5 = As + O =>
As2O5 = 2 As + 5 O
Rb2S + Fe(NO3)3 = Fe2S3 + Rb(NO3) =>
3 Rb2S + 2 Fe(NO3)3 = Fe2S3 + 6 Rb(NO3)
Eu + O2 = EuO =>
2 Eu + O2 = 2 EuO
C14H10O2 + NaBH4 + C2H6O = C14H14O2 + BH3 + NaOH =>
7 C14H10O2 + 5 NaBH4 + 7 C2H6O = 8 C14H14O2 + 5 BH3 + 5 NaOH
S + H2O = HS + OH =>
S + H2O = HS + OH
KMnO4 + KNO2 + Sn(OH)2 = Sn(NO3)2 + MnO2 + K2SnO3 + H2O =>
6 KMnO4 + 4 KNO2 + 7 Sn(OH)2 = 2 Sn(NO3)2 + 6 MnO2 + 5 K2SnO3 + 7 H2O
AsH4 + HNO3 = H3AsO4 + NO2 + H2O =>
AsH4 + 9 HNO3 = H3AsO4 + 9 NO2 + 5 H2O
K2Cr2O7 + C2H6O + H2SO4 = Cr2(SO4)3 + K2SO4 + CH3COOH + H2O =>
2 K2Cr2O7 + 3 C2H6O + 8 H2SO4 = 2 Cr2(SO4)3 + 2 K2SO4 + 3 CH3COOH + 11 H2O
[Co(NH3)6]Cl3 + NaOH = [Co(NH3)6](OH)3 + NaCl =>
[Co(NH3)6]Cl3 + 3 NaOH = [Co(NH3)6](OH)3 + 3 NaCl
BaCl2 = Ba + Cl =>
BaCl2 = Ba + 2 Cl
Ca3(PO4)2 + NH4NO3 = (NH4)3PO4 + Ca(NO3)2 =>
Ca3(PO4)2 + 6 NH4NO3 = 2(NH4)3PO4 + 3 Ca(NO3)2
PbNO3 + FeCl = PbCl + FeNO3 =>
PbNO3 + FeCl = PbCl + FeNO3
H2SO4 + KOH = H3KSO5 =>
H2SO4 + KOH = H3KSO5
NaHCO3 + H3C6H5O5 = CO2 + H2O + Na3C6H5O7 =>
33 NaHCO3 + 9 H3C6H5O5 = 21 CO2 + 25 H2O + 11 Na3C6H5O7
Al2Cl3 + KOH = Al(OH)3 + K2Cl =>
Al2Cl3 + 6 KOH = 2 Al(OH)3 + 3 K2Cl
HCl + Al2Ca = AlCl3 + CaCl2 + H2 =>
8 HCl + Al2Ca = 2 AlCl3 + CaCl2 + 4 H2
Na2FeO2 + NaNO3 + H2O = Na2Fe2O4 + NH3 + NaOH =>
8 Na2FeO2 + NaNO3 + 6 H2O = 4 Na2Fe2O4 + NH3 + 9 NaOH
HCl + Al2Ca = AlCl3 + CaCl2 + H2 =>
8 HCl + Al2Ca = 2 AlCl3 + CaCl2 + 4 H2
KI(aq) + Pb(NO3)2 = KNO3(aq) + PbI2 =>
2 KI(aq) + Pb(NO3)2 = 2 KNO3(aq) + PbI2
AsCl3 + H2O = As(OH)3 + HCl =>
AsCl3 + 3 H2O = As(OH)3 + 3 HCl
NiCl2 + Na2CO3 = NaCl + NiCO3 =>
NiCl2 + Na2CO3 = 2 NaCl + NiCO3
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