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4 Fe + 3 O2 = 2 Fe2O3
K2B4O7 + HCl + H2O = KCl + H3BO3 =>
K2B4O7 + 2 HCl + 5 H2O = 2 KCl + 4 H3BO3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
Al + NAOH + H2O = NAAl(OH)3 + H2 =>
Al + NAOH + 2 H2O = NAAl(OH)3 + H2
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
NaHCO3 + H2SO4 = Na2SO4 + H2O + CO2 =>
2 NaHCO3 + H2SO4 = Na2SO4 + 2 H2O + 2 CO2
FeCl3*6H2O + NaC2H3O2*3H2O + C5H8O2 = Fe(C5H7O2)3 + NaCl + HC2H3O2 + H2O =>
FeCl3*6H2O + 3 NaC2H3O2*3H2O + 3 C5H8O2 = Fe(C5H7O2)3 + 3 NaCl + 3 HC2H3O2 + 15 H2O
CH4 + H2O = CO2 + H2 =>
CH4 + 2 H2O = CO2 + 4 H2
CuO + KOH = K2CuO2 + H2O =>
CuO + 2 KOH = K2CuO2 + H2O
Fe(OH)2 + H2SO4 = FeSO4 + H2O =>
Fe(OH)2 + H2SO4 = FeSO4 + 2 H2O
NaOH + H2SO4 = Na2SO4 + H2O =>
2 NaOH + H2SO4 = Na2SO4 + 2 H2O
FeS2 + O2 = FeO3 + SO2 =>
2 FeS2 + 7 O2 = 2 FeO3 + 4 SO2
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
Pb(NO3)2 + NaCl = NaNO3 + PbCl2 =>
Pb(NO3)2 + 2 NaCl = 2 NaNO3 + PbCl2
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
FeSO4 + NaOH = Na2SO4 + Fe(OH)2 =>
FeSO4 + 2 NaOH = Na2SO4 + Fe(OH)2
C8H8O3 + HBr + KBrO3 = C8H7BrO3 + CH3CO2K + H2O =>
12 C8H8O3 + 7 HBr + 4 KBrO3 = 11 C8H7BrO3 + 4 CH3CO2K + 7 H2O
FeCl3 + NaOH = NaCl + Fe(OH)3 =>
FeCl3 + 3 NaOH = 3 NaCl + Fe(OH)3
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
HCl(ac) + H2O(l) = ClOH + H =>
HCl(ac) + H2O(l) = ClOH + 2 H
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
Al(OH)3 + HCl = AlCl3 + H2O =>
Al(OH)3 + 3 HCl = AlCl3 + 3 H2O
CuSO4 + NaOH = Na2SO4 + Cu(OH)2 =>
CuSO4 + 2 NaOH = Na2SO4 + Cu(OH)2
HClO4 + NaOH = H2O + NaClO4 =>
HClO4 + NaOH = H2O + NaClO4
C2H5OH + O2 = CO2 + H2O =>
C2H5OH + 3 O2 = 2 CO2 + 3 H2O
C2H6O + O2 = CO2 + H2O =>
C2H6O + 3 O2 = 2 CO2 + 3 H2O
Fe + HCl = FeCl + H2 =>
2 Fe + 2 HCl = 2 FeCl + H2
HNO3 + CaCl2 = Ca(NO3)2 + HCl =>
2 HNO3 + CaCl2 = Ca(NO3)2 + 2 HCl
FeCl3 + NH4OH = NH4Cl + Fe(OH)3 =>
FeCl3 + 3 NH4OH = 3 NH4Cl + Fe(OH)3
C2H6O + O2 = CO2 + H2O =>
C2H6O + 3 O2 = 2 CO2 + 3 H2O
HBr + Ca(OH)2 = H2O + CaBr2 =>
2 HBr + Ca(OH)2 = 2 H2O + CaBr2
HCl + KOH = H2O + KCl =>
HCl + KOH = H2O + KCl
NH3 + NO2 = N2 + H2O =>
8 NH3 + 6 NO2 = 7 N2 + 12 H2O
Ba(OH)2 + CaCl2 = BaCl2 + Ca(OH)2 =>
Ba(OH)2 + CaCl2 = BaCl2 + Ca(OH)2
H2 + Cl2 = HCl =>
H2 + Cl2 = 2 HCl
ZnO + NaOH = Na2ZnO2 + H2O =>
ZnO + 2 NaOH = Na2ZnO2 + H2O
As + Cl2 + H2O = H3AsO4 + HCl =>
2 As + 5 Cl2 + 8 H2O = 2 H3AsO4 + 10 HCl
Pb(OH)2 + NaOH = Na2PbO2 + H2O =>
Pb(OH)2 + 2 NaOH = Na2PbO2 + 2 H2O
PbS + O2 = PbO + SO2 =>
2 PbS + 3 O2 = 2 PbO + 2 SO2
C5H14O + O2 = CO2 + H2O =>
C5H14O + 8 O2 = 5 CO2 + 7 H2O
NaOH + Cl2 = NaCl + NaClO3 + H2O =>
6 NaOH + 3 Cl2 = 5 NaCl + NaClO3 + 3 H2O
A1 + N2 = A1N =>
2 A1 + N2 = 2 A1N
AgNO3(aq) + CaCl2(aq) = AgCl(s) + Ca(NO3)2(aq) =>
2 AgNO3(aq) + CaCl2(aq) = 2 AgCl(s) + Ca(NO3)2(aq)
Ca(OH)2 + Al2(SO4)3 = CaSO4 + Al(OH)3 =>
3 Ca(OH)2 + Al2(SO4)3 = 3 CaSO4 + 2 Al(OH)3
NaAlO2 + H2O = NaOH + Al(OH)3 =>
NaAlO2 + 2 H2O = NaOH + Al(OH)3
Al(OH)3 = Al2O3 + H2O =>
2 Al(OH)3 = Al2O3 + 3 H2O
NaO2 + H2O = NaOH + O2 =>
4 NaO2 + 2 H2O = 4 NaOH + 3 O2
NH3 + O2 = NO + H2O =>
4 NH3 + 5 O2 = 4 NO + 6 H2O
PbCl2 + H2O = HCl + PbO =>
PbCl2 + H2O = 2 HCl + PbO
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