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2 Fe + O = Fe2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Ag + O = Ag2O =>
2 Ag + O = Ag2O
FeO3 + CO = Fe + CO2 =>
FeO3 + 3 CO = Fe + 3 CO2
Cu + HNO3 = Cu(NO3)2 + H =>
Cu + 2 HNO3 = Cu(NO3)2 + 2 H
H2 + SO4 + Pb(OH)4 = Pb(SO4)2 + H2O =>
2 H2 + 2 SO4 + Pb(OH)4 = Pb(SO4)2 + 4 H2O
SiCl4 + H2O = H4SiO4 + HCl =>
SiCl4 + 4 H2O = H4SiO4 + 4 HCl
B2H6 + H2O = H3BO3 + H2 =>
B2H6 + 6 H2O = 2 H3BO3 + 6 H2
H2SO4 + Pb(OH)4 = Pb(SO4)2 + H2O =>
2 H2SO4 + Pb(OH)4 = Pb(SO4)2 + 4 H2O
Al + HCl = AlCl3 + H2 =>
2 Al + 6 HCl = 2 AlCl3 + 3 H2
Fe2 + Cl2 = FeCl3 =>
Fe2 + 3 Cl2 = 2 FeCl3
CO2 + NH3 = OC(NH2)2 + H2O =>
CO2 + 2 NH3 = OC(NH2)2 + H2O
SiO3 + HF = SiF6 + H2O =>
SiO3 + 6 HF = SiF6 + 3 H2O
SO3 + H2O = H2SO4 =>
SO3 + H2O = H2SO4
Cu(NO3)2 + NaOH = Cu(OH)2 + Na(NO3) =>
Cu(NO3)2 + 2 NaOH = Cu(OH)2 + 2 Na(NO3)
Ca3(PO4)2 + H2SO4 = CaSO4 + Ca(H2PO4)2 =>
Ca3(PO4)2 + 2 H2SO4 = 2 CaSO4 + Ca(H2PO4)2
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
Na2O + H2O = NaOH =>
Na2O + H2O = 2 NaOH
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
KNO3 = KNO2 + O2 =>
2 KNO3 = 2 KNO2 + O2
BaO + H2O = Ba(OH)2 =>
BaO + H2O = Ba(OH)2
BaCl2 + CaNH4 = BaNH4 + CaCl2 =>
BaCl2 + CaNH4 = BaNH4 + CaCl2
CuO + H2SO4 = CuSO4 + H2O =>
CuO + H2SO4 = CuSO4 + H2O
CO2 + H2O = H2CO3 =>
CO2 + H2O = H2CO3
LiS + SrI = LiI + SrS =>
LiS + SrI = LiI + SrS
CH3COOH + NaOH = CH3COONa + H2O =>
CH3COOH + NaOH = CH3COONa + H2O
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Li2S + SrI2 = LiI + SrS =>
Li2S + SrI2 = 2 LiI + SrS
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
C + O = CO =>
C + O = CO
HCOOH + Ca = (HCOO)2Ca + H2 =>
2 HCOOH + Ca = (HCOO)2Ca + H2
Li + H2O = H2 + Li(OH) =>
2 Li + 2 H2O = H2 + 2 Li(OH)
(CH3COO)2Ba + Na2CO3 = CO2 + BaO + CH3COONa =>
(CH3COO)2Ba + Na2CO3 = CO2 + BaO + 2 CH3COONa
P5 + Cl = PCl5 =>
P5 + 25 Cl = 5 PCl5
S + K2 = K2S =>
S + K2 = K2S
Zn + HCl = ZnCl + H =>
Zn + HCl = ZnCl + H
SO4{-}2 + Fe{+}2 = FeSO4 =>
SO4{-}2 + Fe{+}2 = FeSO4
CH3COOH + NH3 = (CH3COO)3N + H2 =>
3 CH3COOH + NH3 = (CH3COO)3N + 3 H2
Zn + HCl = ZnCl2 + H =>
Zn + 2 HCl = ZnCl2 + 2 H
H2SO4 + KOH = K2SO4 + H2O =>
H2SO4 + 2 KOH = K2SO4 + 2 H2O
Fe3 + S2 = Fe2S3 =>
4 Fe3 + 9 S2 = 6 Fe2S3
Al2O3 + HCl = AlCl3 + H2O =>
Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O
(CH3COO)2Ba + H2SO4 = CH3COOH + BaSO4 =>
(CH3COO)2Ba + H2SO4 = 2 CH3COOH + BaSO4
Fe + HCl = FeCl + H2 =>
2 Fe + 2 HCl = 2 FeCl + H2
Al(C2H3O2)3 + LiNO3 = Al(NO3)3 + Li(C2H3O2) =>
Al(C2H3O2)3 + 3 LiNO3 = Al(NO3)3 + 3 Li(C2H3O2)
Cl2 + OH{-} = ClO3{-} + Cl{-} + H2O =>
3 Cl2 + 6 OH{-} = ClO3{-} + 5 Cl{-} + 3 H2O
Na2S2O5 + H2O = NaHSO3 =>
Na2S2O5 + H2O = 2 NaHSO3
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
P4O10 + H2O = H3PO4 =>
P4O10 + 6 H2O = 4 H3PO4
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