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4 Fe + 3 O2 = 2 Fe2O3
NaOH + Cl2 = NaCl + NaClO + H2O =>
2 NaOH + Cl2 = NaCl + NaClO + H2O
NaCl + Cu = Na + CuCl =>
NaCl + Cu = Na + CuCl
CaCl2 + AgF = AgCl + CaF2 =>
CaCl2 + 2 AgF = 2 AgCl + CaF2
Al + CuSO4 + H2SO4 = CuH + Al2(SO4)3 =>
2 Al + 2 CuSO4 + H2SO4 = 2 CuH + Al2(SO4)3
Fe + S4 = FeS =>
4 Fe + S4 = 4 FeS
H2C4H4O5 + NaOH = Na2C4H4O5 + H2O =>
H2C4H4O5 + 2 NaOH = Na2C4H4O5 + 2 H2O
H2S + MgCO3 = H2O + CO2 + MgS =>
H2S + MgCO3 = H2O + CO2 + MgS
PbO2 + HMnO3 + HNO3 = Pb(NO3)2 + HMnO4 + H2O =>
PbO2 + HMnO3 + 2 HNO3 = Pb(NO3)2 + HMnO4 + H2O
Na2S2O7 + AgNO3 = Ag2S2O7 + NaNO3 =>
Na2S2O7 + 2 AgNO3 = Ag2S2O7 + 2 NaNO3
H2O + Zn + NO3{-} + OH{-} = Zn(OH)4{2-} + NH3 =>
6 H2O + 4 Zn + NO3{-} + 7 OH{-} = 4 Zn(OH)4{2-} + NH3
CH3OOH + Na2CO3 = CO2 + NaC2H3O2 + H2O =>
4 CH3OOH + Na2CO3 = CO2 + 2 NaC2H3O2 + 5 H2O
Al2O3 + NaOH + H2O = Na[Al(OH)4] =>
Al2O3 + 2 NaOH + 3 H2O = 2 Na[Al(OH)4]
NH4Al(SO4)2 + NH3 + H2O = (NH4)2SO4 + Al2O3(H2O) =>
2 NH4Al(SO4)2 + 6 NH3 + 4 H2O = 4(NH4)2SO4 + Al2O3(H2O)
Al + H2 + C2H4 = Al(C2H5)3 =>
2 Al + 3 H2 + 6 C2H4 = 2 Al(C2H5)3
NH3 + K2Cr2O7 + HCl = KNO3 + KCl + CrCl3 + H2O =>
3 NH3 + 4 K2Cr2O7 + 29 HCl = 3 KNO3 + 5 KCl + 8 CrCl3 + 19 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
CaCl2 + K3PO4 = Ca3(PO4)2 + KCl =>
3 CaCl2 + 2 K3PO4 = Ca3(PO4)2 + 6 KCl
S + O2 = SO2 =>
S + O2 = SO2
NH3Br(aq) + NaOH(aq) = NH2 + H2O + NaBr =>
NH3Br(aq) + NaOH(aq) = NH2 + H2O + NaBr
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Na2SiO3 + HNO3 = NaNO3 + H2O + SiO2 =>
Na2SiO3 + 2 HNO3 = 2 NaNO3 + H2O + SiO2
Li + YbCl3 = Yb + LiCl =>
3 Li + YbCl3 = Yb + 3 LiCl
SO2 + CaO = SO2Ca + O2 =>
2 SO2 + 2 CaO = 2 SO2Ca + O2
Al + H2 + C2H4 = Al(C2H5)3 =>
2 Al + 3 H2 + 6 C2H4 = 2 Al(C2H5)3
H2C2O4 + KMnO4 = CO2 + K2CO3 + MnO + H2O =>
5 H2C2O4 + 2 KMnO4 = 9 CO2 + K2CO3 + 2 MnO + 5 H2O
C + SO2 = CS2 + CO =>
5 C + 2 SO2 = CS2 + 4 CO
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
BaSO4 + Na2O = BaO + Na2SO4 =>
BaSO4 + Na2O = BaO + Na2SO4
KMnO4 + HCl = KCl + MnCl2 + H2O + Cl2 =>
2 KMnO4 + 16 HCl = 2 KCl + 2 MnCl2 + 8 H2O + 5 Cl2
Al2O3 + NaOH + H2O = Na3[Al(OH)6] =>
Al2O3 + 6 NaOH + 3 H2O = 2 Na3[Al(OH)6]
Sr(OH)2 + H2SO4 = [Sr(OH)]2SO4 + H2O =>
2 Sr(OH)2 + H2SO4 = [Sr(OH)]2SO4 + 2 H2O
C2H5NH2 + HO2 = CO2 + H2O + N2 =>
2 C2H5NH2 + 10 HO2 = 4 CO2 + 12 H2O + N2
Cu(OH)2 + NaCl = CuCl2 + NaOH =>
Cu(OH)2 + 2 NaCl = CuCl2 + 2 NaOH
NO2 + O2 = NO(O)2 =>
2 NO2 + O2 = 2 NO(O)2
NiO(OH) + Cd + H2O = NiOH + CdOH =>
NiO(OH) + 2 Cd + H2O = NiOH + 2 CdOH
MnO4{-} + Cl{-} + H{+} = Mn{2+} + Cl2 + H2O =>
2 MnO4{-} + 10 Cl{-} + 16 H{+} = 2 Mn{2+} + 5 Cl2 + 8 H2O
Fe(s) + S(l) = FeS =>
Fe(s) + S(l) = FeS
(CH2OH) + O2 = CO2 + H2 =>
2(CH2OH) + O2 = 2 CO2 + 3 H2
HCOOH + CH3OH = H2O + CH3COOH =>
HCOOH + CH3OH = H2O + CH3COOH
H2O + HBr = Br + H3O =>
H2O + HBr = Br + H3O
C2H8O2N2 + O2 = CO2 + H2O + N2 =>
C2H8O2N2 + 3 O2 = 2 CO2 + 4 H2O + N2
CaSiO3 + HNO3 = Ca(NO3)2 + SiO2 + H2O =>
CaSiO3 + 2 HNO3 = Ca(NO3)2 + SiO2 + H2O
Ca(NO3)2(ac) + NH4OH(ac) = NH4NO3(ac) + Ca(OH)2(s) =>
Ca(NO3)2(ac) + 2 NH4OH(ac) = 2 NH4NO3(ac) + Ca(OH)2(s)
C2H5OH + OH = CH3COO + H2O =>
C2H5OH + 5 OH = CH3COO + 4 H2O
HgO + H2SO3 = HgOSO3 + H2 =>
HgO + H2SO3 = HgOSO3 + H2
C4H9Br + C2H5Br + Na = NaBr + C6H14 =>
C4H9Br + C2H5Br + 2 Na = 2 NaBr + C6H14
BaSO4 + Na2O = BaO + Na2SO4 =>
BaSO4 + Na2O = BaO + Na2SO4
(C6H6) + O2 = CO2 + H2O =>
2(C6H6) + 15 O2 = 12 CO2 + 6 H2O
SiO2 + KOH = K2SiO3 + H2O =>
SiO2 + 2 KOH = K2SiO3 + H2O
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