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2 Fe2O = 4 Fe + O2
NaNO2 + C10H7OH = HOC10H6NO + NaOH =>
NaNO2 + C10H7OH = HOC10H6NO + NaOH
Ag + C2H = C2HAg =>
Ag + C2H = C2HAg
Cr + FeSO4 = CrSO4 + Fe =>
Cr + FeSO4 = CrSO4 + Fe
Fe2O3 = Fe + O2 =>
2 Fe2O3 = 4 Fe + 3 O2
H2O2 + H2SO4 + KI = K2SO4 + H2O + I2 =>
H2O2 + H2SO4 + 2 KI = K2SO4 + 2 H2O + I2
Na + Cl = NaCl =>
Na + Cl = NaCl
Cu + Nitricacid = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
Cu + Nitricacid = Cu(NO3)2 + N2O + H2O =>
4 Cu + 10 HNO3 = 4 Cu(NO3)2 + N2O + 5 H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
Cu + Nitricacid = Cu(NO3)2 + N2 + H2O =>
5 Cu + 12 HNO3 = 5 Cu(NO3)2 + N2 + 6 H2O
CH4 + O2 = H2O + CO2 =>
CH4 + 2 O2 = 2 H2O + CO2
Al + S = Al2S3 =>
2 Al + 3 S = Al2S3
NaclO3 + MnO2 + NaOH = Nacl + Na2MnO4 + H2O =>
NaclO3 + 3 MnO2 + 6 NaOH = Nacl + 3 Na2MnO4 + 3 H2O
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
I{-} + NO2{-} + H{+} = I2 + NO + H2O =>
2 I{-} + 2 NO2{-} + 4 H{+} = I2 + 2 NO + 2 H2O
KOH + SnCl2 = KCl2 + SnOH =>
KOH + SnCl2 = KCl2 + SnOH
Mg + H3PO4 = Mg3(PO4)2 + H2 =>
3 Mg + 2 H3PO4 = Mg3(PO4)2 + 3 H2
Na + Cl = NaCl =>
Na + Cl = NaCl
HgNH2Cl + NH4Cl = [Hg(NH3)2]{2+} + Cl{-} =>
HgNH2Cl + NH4Cl = [Hg(NH3)2]{2+} + 2 Cl{-}
Cr2O7{-2} + H2O + {-} = Cr{+3} + OH{-} =>
Cr2O7{-2} + 7 H2O + 6e = 2 Cr{+3} + 14 OH{-}
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
AlCl3 + Na(OH) = Al(OH)3 + NaCl =>
AlCl3 + 3 Na(OH) = Al(OH)3 + 3 NaCl
Na2SO4 + Li = Li2SO4 + Na =>
Na2SO4 + 2 Li = Li2SO4 + 2 Na
Al + Cl = AlCl =>
Al + Cl = AlCl
NaNO3 = NaNO2 + O2 =>
2 NaNO3 = 2 NaNO2 + O2
Pb + Cu(NO3)2 = Pb(NO3)2 + Cu =>
Pb + Cu(NO3)2 = Pb(NO3)2 + Cu
Cl2 + H2O = HCl + HClO =>
Cl2 + H2O = HCl + HClO
Cl2 + NaOH = NaCl + NaClO3 + H2O =>
3 Cl2 + 6 NaOH = 5 NaCl + NaClO3 + 3 H2O
CO + Fe3O4 = CO2 + Fe =>
4 CO + Fe3O4 = 4 CO2 + 3 Fe
H3PO4 + NH3 = (NH4)3PO4 =>
H3PO4 + 3 NH3 = (NH4)3PO4
Ni + HCl = NiCl2 + H2 =>
Ni + 2 HCl = NiCl2 + H2
Ag + HNO3 = AgNO3 + NO + H2O =>
3 Ag + 4 HNO3 = 3 AgNO3 + NO + 2 H2O
Cl2 + NaOH = NaCl + NaClO3 + H2O =>
3 Cl2 + 6 NaOH = 5 NaCl + NaClO3 + 3 H2O
Cl2 + NaOH = NaCl + NaClO + H2O =>
Cl2 + 2 NaOH = NaCl + NaClO + H2O
P + NO2 = P2O5 + NO =>
2 P + 5 NO2 = P2O5 + 5 NO
CuSO4 + Fe = FeSO4 + Cu =>
CuSO4 + Fe = FeSO4 + Cu
Fe3O4 + C = FeO + CO2 =>
2 Fe3O4 + C = 6 FeO + CO2
Ni + HCl = NiCl2 + H2 =>
Ni + 2 HCl = NiCl2 + H2
HNO3 + Hg = Hg(NO3)2 + NO + H2O =>
8 HNO3 + 3 Hg = 3 Hg(NO3)2 + 2 NO + 4 H2O
P + Cl = PCl =>
P + Cl = PCl
Hg{2+} + NH4OH = [Hg(NH3)4]{2+} + H2O =>
Hg{2+} + 4 NH4OH = [Hg(NH3)4]{2+} + 4 H2O
S + NaOH = Na2S + Na2S2O3 + H20 =>
50 S + 60 NaOH = 10 Na2S + 20 Na2S2O3 + 3 H20
CH3COOH + NaOH = NaCH3COO + H2O =>
CH3COOH + NaOH = NaCH3COO + H2O
Al + PbO = Al2O3 + Pb =>
2 Al + 3 PbO = Al2O3 + 3 Pb
S + NaOH = Na2S + Na2S2O3 + H2 =>
5 S + 6 NaOH = Na2S + 2 Na2S2O3 + 3 H2
CH4 + H2O = CO2 + H2 =>
CH4 + 2 H2O = CO2 + 4 H2
KOH + H2SO4 = K2SO4 + H2O =>
2 KOH + H2SO4 = K2SO4 + 2 H2O
P + Mg = PMg =>
P + Mg = PMg
Zn + CuSO4 = ZnSO4 + Cu =>
Zn + CuSO4 = ZnSO4 + Cu
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