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4 K2Cr2O7 = 4 K2CrO4 + 2 Cr2O3 + 3 O2
Cu + NaOH + H2O = Na(Cu(OH)2) + H2 =>
2 Cu + 2 NaOH + 2 H2O = 2 Na(Cu(OH)2) + H2
CaSO3 + H2O = CaO + H2SO3 =>
CaSO3 + H2O = CaO + H2SO3
Cr(OH)2 = CrO + H2O =>
Cr(OH)2 = CrO + H2O
HC2H3O2 + NaHCO3 = CO2 + NaC2H3O2 + H2O =>
HC2H3O2 + NaHCO3 = CO2 + NaC2H3O2 + H2O
H2C6O5H7 + H2O = H3O + C6O5H7 =>
H2C6O5H7 + 2 H2O = 2 H3O + C6O5H7
Ni + I = Ni2I =>
2 Ni + I = Ni2I
BaSO3 + HBr = BaBr2 + H2SO3 =>
BaSO3 + 2 HBr = BaBr2 + H2SO3
HCl + H2S = Cl2S + H2 =>
2 HCl + H2S = Cl2S + 2 H2
Co2O3 + H2SO4 = Co2(SO4)3 + H2O =>
Co2O3 + 3 H2SO4 = Co2(SO4)3 + 3 H2O
MoS2 + O2 = MoO3 + SO =>
2 MoS2 + 5 O2 = 2 MoO3 + 4 SO
BaCO3 + HCOH = Ba(HCO)2 + H2O + CO2 =>
BaCO3 + 2 HCOH = Ba(HCO)2 + H2O + CO2
Na2S2O3 + Cl2 = Na2S4O6 + NaCl =>
2 Na2S2O3 + Cl2 = Na2S4O6 + 2 NaCl
Ni(OH)2 + CO2 = NiCO3 + H2O =>
Ni(OH)2 + CO2 = NiCO3 + H2O
K + H2SO4 = K2SO4 + S + H2O =>
6 K + 4 H2SO4 = 3 K2SO4 + S + 4 H2O
Cu(OH)2 + Cl = CuCl2 + Cu(ClO)2 + H2O =>
2 Cu(OH)2 + 4 Cl = CuCl2 + Cu(ClO)2 + 2 H2O
Cu(s) + H2SO4 = CuSO4 + CuS(s) + H2O =>
4 Cu(s) + 4 H2SO4 = 3 CuSO4 + CuS(s) + 4 H2O
FeS2 + O2 + H2O = Fe{2+} + SO4{2-} + H{+} =>
2 FeS2 + 7 O2 + 2 H2O = 2 Fe{2+} + 4 SO4{2-} + 4 H{+}
ZnCO3 + H3PO4 = Zn3(PO4)2 + H2O + CO2 =>
3 ZnCO3 + 2 H3PO4 = Zn3(PO4)2 + 3 H2O + 3 CO2
HCI(aq) + NaOH(aq) = NaCI + H2O =>
HCI(aq) + NaOH(aq) = NaCI + H2O
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
FeS + HBr = Fe(Br)2 + H2S =>
FeS + 2 HBr = Fe(Br)2 + H2S
C3H6O3 = C + H2O =>
C3H6O3 = 3 C + 3 H2O
Cu + NaOH + H2O = NaCu(OH)4 + H2 =>
2 Cu + 2 NaOH + 6 H2O = 2 NaCu(OH)4 + 3 H2
CuCO3 + H2O = CuO + H2CO3 =>
CuCO3 + H2O = CuO + H2CO3
P2O5 + Cu3 = P2O5Cu =>
3 P2O5 + Cu3 = 3 P2O5Cu
Na3P + CaF2 = NaF + Ca3P2 =>
2 Na3P + 3 CaF2 = 6 NaF + Ca3P2
CoCl2 + (NH4)3PO4 = Co3(PO4)2 + NH4Cl =>
3 CoCl2 + 2(NH4)3PO4 = Co3(PO4)2 + 6 NH4Cl
Ca + HSO4 = CaHSO4 =>
Ca + HSO4 = CaHSO4
C5 + O2 = CO =>
2 C5 + 5 O2 = 10 CO
K2SO4 + Al = Al2(SO4)3 + K =>
3 K2SO4 + 2 Al = Al2(SO4)3 + 6 K
CaI2(aq) + Br2(aq) = CaBr2(s) + I2(l) =>
CaI2(aq) + Br2(aq) = CaBr2(s) + I2(l)
NaAlSi3O8 + H2O + H = Na + Si(OH)4 + Al2Si2O5(OH)4 =>
2 NaAlSi3O8 + 9 H2O + 2 H = 2 Na + 4 Si(OH)4 + Al2Si2O5(OH)4
CH3Cl = C + H2 + Cl2 =>
2 CH3Cl = 2 C + 3 H2 + Cl2
Mn2O7 + CaO = Ca(MnO4)2 =>
Mn2O7 + CaO = Ca(MnO4)2
Fe + Pb(NO3)2 = Fe(NO3)3 + Pb =>
2 Fe + 3 Pb(NO3)2 = 2 Fe(NO3)3 + 3 Pb
Cu(s) + HgNO3(ac) = Hg(l) + CuNO3(ac) =>
Cu(s) + HgNO3(ac) = Hg(l) + CuNO3(ac)
Fe + CaCl2 = FeCl2 + Ca =>
Fe + CaCl2 = FeCl2 + Ca
CH3CHCH2 + H2O = CH3CH2OH =>
2 CH3CHCH2 + 3 H2O = 3 CH3CH2OH
HCl(aq) + NaClO(aq) = NaCl(aq) + H2O(l) + Cl2(g) =>
2 HCl(aq) + NaClO(aq) = NaCl(aq) + H2O(l) + Cl2(g)
Ca3(PO4)2(aq) + H2SO4(aq) = H3PO4 + CaSO4 =>
Ca3(PO4)2(aq) + 3 H2SO4(aq) = 2 H3PO4 + 3 CaSO4
Mg(s) + Ca(NO3)2(aq) = Mg(NO3)2 + Ca(s) =>
Mg(s) + Ca(NO3)2(aq) = Mg(NO3)2 + Ca(s)
Ba(OH)2 + NiCl2 = BaCl2 + Ni(OH)2 =>
Ba(OH)2 + NiCl2 = BaCl2 + Ni(OH)2
FeSO4 + NO = Fe(NO)SO4 =>
FeSO4 + NO = Fe(NO)SO4
CO2 + H2O = C6H12O6 + O2 =>
6 CO2 + 6 H2O = C6H12O6 + 6 O2
I2(aq)MgCl2(aq) = Cl2(aq) + MgI2(aq) =>
I2(aq)MgCl2(aq) = Cl2(aq) + MgI2(aq)
FeS + HBr = Fe(Br)2 + H2S =>
FeS + 2 HBr = Fe(Br)2 + H2S
Cu(NO3)2 + NH3 = Cu(NH3)2 + NO3 =>
Cu(NO3)2 + 2 NH3 = Cu(NH3)2 + 2 NO3
HNO3 + HF = FNO2 + H2O =>
HNO3 + HF = FNO2 + H2O
HC2H3O2 + H2O = H3O + C2H3O2 =>
HC2H3O2 + H2O = H3O + C2H3O2
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