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PbO + 2 H = Pb + H2O
VO2{+} + H{+} + I{-} = VO{2+} + H2O + I2 =>
2 VO2{+} + 4 H{+} + 2 I{-} = 2 VO{2+} + 2 H2O + I2
Ca + O = CaO =>
Ca + O = CaO
NaNO3 + KCl = NaCl + KNO3 =>
NaNO3 + KCl = NaCl + KNO3
Zn + HNO3 = Zn(NO3)2 + H2 =>
Zn + 2 HNO3 = Zn(NO3)2 + H2
SiO2 + C = SiC + CO =>
SiO2 + 3 C = SiC + 2 CO
(NH4)2S + CO2 + H2O = NH4(HCO3) + H2S =>
(NH4)2S + 2 CO2 + 2 H2O = 2 NH4(HCO3) + H2S
MnO4{-} + Sn{2+} + H{+} = Mn{2+} + Sn{4+} + H2O =>
2 MnO4{-} + 5 Sn{2+} + 16 H{+} = 2 Mn{2+} + 5 Sn{4+} + 8 H2O
C4H6 + O2 = CO2 + H2O =>
2 C4H6 + 11 O2 = 8 CO2 + 6 H2O
SiO2 + C = Si + CO =>
SiO2 + 2 C = Si + 2 CO
BaCl2 + Na2SO4 = Ba2(SO4)2 + NaCl =>
2 BaCl2 + 2 Na2SO4 = Ba2(SO4)2 + 4 NaCl
Au2O3 = Au3 + O2 =>
6 Au2O3 = 4 Au3 + 9 O2
Mg + HCl = MgCl2 + H =>
Mg + 2 HCl = MgCl2 + 2 H
FeS + HCl = FeCl + HS =>
FeS + HCl = FeCl + HS
Fe3O4 + C = Fe + CO2 =>
Fe3O4 + 2 C = 3 Fe + 2 CO2
Mg(OH)2 + H3PO4 = Mg3(PO4)2 + H2O =>
3 Mg(OH)2 + 2 H3PO4 = Mg3(PO4)2 + 6 H2O
CH4 + O2 = CO2 + H20 =>
5 CH4 + 5 O2 = 5 CO2 + H20
P4 + Cl2 = PCl5 =>
P4 + 10 Cl2 = 4 PCl5
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
NaCl + AgNO3 = AgCl + NaNO3 =>
NaCl + AgNO3 = AgCl + NaNO3
NaCl + K2SO4 = Na2SO4 + KCl =>
2 NaCl + K2SO4 = Na2SO4 + 2 KCl
CH3COOH + NaHCO3 = CO2 + H20 + NaCH3COO =>
15 CH3COOH + 10 NaHCO3 = 20 CO2 + 2 H20 + 10 NaCH3COO
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
SO2 + O2 = SO3 =>
2 SO2 + O2 = 2 SO3
AlCl3 + NaOH = Al(OH)3 + NaCl =>
AlCl3 + 3 NaOH = Al(OH)3 + 3 NaCl
Na + MgF2 = NaF + Mg =>
2 Na + MgF2 = 2 NaF + Mg
NaOH + HNO3 = NaNO3 + HOH =>
NaOH + HNO3 = NaNO3 + HOH
Na2CO3 + H2SO4 = Na2SO4 + H2CO3 =>
Na2CO3 + H2SO4 = Na2SO4 + H2CO3
SnCl4 + K2CrO4 = SnCrO4 + KCl2 =>
SnCl4 + K2CrO4 = SnCrO4 + 2 KCl2
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
Mg + HCl = MgCl2 + H2 =>
Mg + 2 HCl = MgCl2 + H2
K2Cr2O7 + H2SO4 + NaNO2 = Cr2(SO4)3 + NaNO3 + K2SO4 + H2O =>
K2Cr2O7 + 4 H2SO4 + 3 NaNO2 = Cr2(SO4)3 + 3 NaNO3 + K2SO4 + 4 H2O
Zn + H2SO4 = ZnSO4 + H2 =>
Zn + H2SO4 = ZnSO4 + H2
KOH + FeCl3 = KCl + Fe(OH)3 =>
3 KOH + FeCl3 = 3 KCl + Fe(OH)3
LiOH + Al(NO3)3 = Al(OH)3 + LiNO3 =>
3 LiOH + Al(NO3)3 = Al(OH)3 + 3 LiNO3
C4H6O6 + C8H11N = C8H12N + C4H5O6 =>
C4H6O6 + C8H11N = C8H12N + C4H5O6
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
NaCl + LiOH = NaOH + LiCl =>
NaCl + LiOH = NaOH + LiCl
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
Fe2O3 + H2O = Fe(OH)3 =>
Fe2O3 + 3 H2O = 2 Fe(OH)3
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
Fe + H2O = Fe2O3 + H2 =>
2 Fe + 3 H2O = Fe2O3 + 3 H2
Na + HCl = H2 + NaCl =>
2 Na + 2 HCl = H2 + 2 NaCl
Fe + HCl = FeCl2 + H2 =>
Fe + 2 HCl = FeCl2 + H2
Pb(NO3)2 + K2CrO4 = Pb2(CrO4)2 + KNO3 =>
2 Pb(NO3)2 + 2 K2CrO4 = Pb2(CrO4)2 + 4 KNO3
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
NO2 + CaO = Ca(NO3) =>
NO2 + CaO = Ca(NO3)
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