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3 Fe + 4 H2O = Fe3O4 + 4 H2
Cu2S + HNO3 = Cu(NO3)2 + H2SO4 + NO2 + H2O =>
Cu2S + 14 HNO3 = 2 Cu(NO3)2 + H2SO4 + 10 NO2 + 6 H2O
AlBr3 + K2SO4 = KBr + Al2(SO4)3 =>
2 AlBr3 + 3 K2SO4 = 6 KBr + Al2(SO4)3
Fe(s) + O2(g) = Fe2O3(s) =>
4 Fe(s) + 3 O2(g) = 2 Fe2O3(s)
BaCl2*2H2O + NaOH = Ba(OH)2 + NaCl + H2O =>
BaCl2*2H2O + 2 NaOH = Ba(OH)2 + 2 NaCl + 2 H2O
FeN = Fe + N =>
FeN = Fe + N
PbS + PbSO4 = Pb + SO2 =>
PbS + PbSO4 = 2 Pb + 2 SO2
Fe(OH)3 + KOCl + KOH = K2FeO4 + KCl + H2O =>
2 Fe(OH)3 + 3 KOCl + 4 KOH = 2 K2FeO4 + 3 KCl + 5 H2O
NH4Cl + Cl2 = HCl + NCl3 =>
NH4Cl + 3 Cl2 = 4 HCl + NCl3
HI + K = KI + H =>
HI + K = KI + H
HClMg(OH)2 = MgClH(OH)2 =>
HClMg(OH)2 = MgClH(OH)2
Cu + AgNO3 = Cu(NO3)2 + Ag =>
Cu + 2 AgNO3 = Cu(NO3)2 + 2 Ag
Fe + HCl = FeCl2 + H2 = =>
Fe + 2 HCl = FeCl2 + H2
TeH2O = TeOH2 =>
TeH2O = TeOH2
C2H5OH + KMnO4 + NaOH = CH3CHO + H2O + K2MnO4 + Na2MnO4 =>
C2H5OH + 2 KMnO4 + 2 NaOH = CH3CHO + 2 H2O + K2MnO4 + Na2MnO4
Br2 + Ba(OH)2 = Ba(BrO3) + BaBr2 + H2O =>
5 Br2 + 6 Ba(OH)2 = 2 Ba(BrO3) + 4 BaBr2 + 6 H2O
PbO2 + Cr2(SO4)3 + NaOH = PbO + Na2CrO4 + Na2SO4 + H2O =>
3 PbO2 + Cr2(SO4)3 + 10 NaOH = 3 PbO + 2 Na2CrO4 + 3 Na2SO4 + 5 H2O
Cs + N2 = Cs3N =>
6 Cs + N2 = 2 Cs3N
C11H12O2 + H2O = C9H8O2 + C2H6O =>
C11H12O2 + H2O = C9H8O2 + C2H6O
H2 + HC2 = C2H2 =>
H2 + 2 HC2 = 2 C2H2
Li3N + (NH4)(NO3) = LiNO3 + (NH4)3N =>
Li3N + 3(NH4)(NO3) = 3 LiNO3 + (NH4)3N
Zn + Sn3(PO4)4 = Sn + Zn3(PO4)2 =>
6 Zn + Sn3(PO4)4 = 3 Sn + 2 Zn3(PO4)2
HCl + K2Cr2O7 + SO2 = CrCl3 + H2SO4 + H2O + KCl =>
8 HCl + K2Cr2O7 + 3 SO2 = 2 CrCl3 + 3 H2SO4 + H2O + 2 KCl
H2SO4 + K2Cr2O7 = K2SO4 + Cr2(SO)3 + H2O + O =>
4 H2SO4 + K2Cr2O7 = K2SO4 + Cr2(SO)3 + 4 H2O + 12 O
KI + H2SO3 + KMnO4 = K2SO3 + I2 + MnSO3 + H2O =>
10 KI + 8 H2SO3 + 2 KMnO4 = 6 K2SO3 + 5 I2 + 2 MnSO3 + 8 H2O
MnSO4 + NaOH + Br2 = MnO(OH)2 + NaBr + Na2SO4 + H2O =>
MnSO4 + 4 NaOH + Br2 = MnO(OH)2 + 2 NaBr + Na2SO4 + H2O
SiC + O2 = SiO2 + CO2 =>
SiC + 2 O2 = SiO2 + CO2
Cd(s) + HNO3(aq) = Cd(NO3)2(aq) + H2 =>
Cd(s) + 2 HNO3(aq) = Cd(NO3)2(aq) + H2
K2S + KMnO4 + H2SO4 = S2MnSO4 + K2SO4 + H2O =>
17 K2S + 8 KMnO4 + 28 H2SO4 = 8 S2MnSO4 + 21 K2SO4 + 28 H2O
KNO3 + C12H22O11 = N2 + CO2 + H2O + K2CO3 =>
48 KNO3 + 5 C12H22O11 = 24 N2 + 36 CO2 + 55 H2O + 24 K2CO3
Mg(s) = Mg{+2} + e =>
Mg(s) = Mg{+2} + 2e
NiI2(s) + O2 = NiO + I2 =>
2 NiI2(s) + O2 = 2 NiO + 2 I2
SO2 + O = O2SO3 =>
SO2 + 3 O = O2SO3
C2H4O2 + NO2 = CO2 + H2O + N2 =>
C2H4O2 + 2 NO2 = 2 CO2 + 2 H2O + N2
ZnF2 + H2O = HF + Zn(OH)2 =>
ZnF2 + 2 H2O = 2 HF + Zn(OH)2
SiO + C = CO2 + Si =>
2 SiO + C = CO2 + 2 Si
HCl + K2CrO4 = H2O + K2Cr2O7 + KCl =>
2 HCl + 2 K2CrO4 = H2O + K2Cr2O7 + 2 KCl
I2 + K2Cr2O7 + H2SO4 = KIO3 + Cr2(SO4)3 + K2SO4 + H2O =>
3 I2 + 5 K2Cr2O7 + 17 H2SO4 = 6 KIO3 + 5 Cr2(SO4)3 + 2 K2SO4 + 17 H2O
(CH3COOH)2Ca + Ca(OH)2 = Ca(CH3COO) + H2O =>
(CH3COOH)2Ca + Ca(OH)2 = 2 Ca(CH3COO) + 2 H2O
CaCl + O2 = CaO + Cl =>
2 CaCl + O2 = 2 CaO + 2 Cl
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Fe3O4 + H2 = Fe + H2O =>
Fe3O4 + 4 H2 = 3 Fe + 4 H2O
CoCl2 + KCNS = K2(Co(CNS)4) + KCl =>
CoCl2 + 4 KCNS = K2(Co(CNS)4) + 2 KCl
NaCl(l) + KBr(l) = KCl(l) + NaBr(l) =>
NaCl(l) + KBr(l) = KCl(l) + NaBr(l)
ZnCl + H = HCl + Zn =>
ZnCl + H = HCl + Zn
Fe(OH)2 + O2 + H2O = Fe(OH)3 = =>
4 Fe(OH)2 + O2 + 2 H2O = 4 Fe(OH)3
C6H16 + O2 = CO2 + H2O =>
C6H16 + 10 O2 = 6 CO2 + 8 H2O
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
Cd + Sn(NO3)4 = Cd(NO3)2 + Sn =>
2 Cd + Sn(NO3)4 = 2 Cd(NO3)2 + Sn
C10H16 + Cl2 = C + HCl =>
C10H16 + 8 Cl2 = 10 C + 16 HCl
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