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2 H2O = 2 H2 + O2
H2O = H{+} + OH{-} =>
H2O = H{+} + OH{-}
Fe + H2O = Fe3O4 + H2 =>
3 Fe + 4 H2O = Fe3O4 + 4 H2
Mg(s) + HCl(aq) = MgCl2(aq) + H2(g) =>
Mg(s) + 2 HCl(aq) = MgCl2(aq) + H2(g)
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
HCl + Ca(OH)2 = CaCl2 + H2O =>
2 HCl + Ca(OH)2 = CaCl2 + 2 H2O
H2S + HNO3 = H2SO4 + NO + H2O =>
3 H2S + 8 HNO3 = 3 H2SO4 + 8 NO + 4 H2O
Fe + H2O = Fe2O3 + H2 =>
2 Fe + 3 H2O = Fe2O3 + 3 H2
CH3(CH2)2CH3 + O2 = CO2 + H2O =>
2 CH3(CH2)2CH3 + 13 O2 = 8 CO2 + 10 H2O
Na + KNO3 = K2O + Na2O + N2 =>
10 Na + 2 KNO3 = K2O + 5 Na2O + N2
MnO2 + KOH + O2 = K2MnO4 + H2O =>
2 MnO2 + 4 KOH + O2 = 2 K2MnO4 + 2 H2O
Mn + NaOH = Mn(OH)2 + Na =>
Mn + 2 NaOH = Mn(OH)2 + 2 Na
Mg + F2 = MgF =>
2 Mg + F2 = 2 MgF
K + H2O = KOH + H2 =>
2 K + 2 H2O = 2 KOH + H2
C4H10O + O2 = CO2 + H2O =>
C4H10O + 6 O2 = 4 CO2 + 5 H2O
(NH4)2S = NH3 + H2S =>
(NH4)2S = 2 NH3 + H2S
Fe + CuSO4 = FeSO4 + Cu =>
Fe + CuSO4 = FeSO4 + Cu
NaClO + H2O = HClO + Na2O =>
2 NaClO + H2O = 2 HClO + Na2O
Fe + CO3 = FeCO3 =>
Fe + CO3 = FeCO3
Pb(NO3)2(aq) + NaI(aq) = PbI2(s) + NaNO3(aq) =>
Pb(NO3)2(aq) + 2 NaI(aq) = PbI2(s) + 2 NaNO3(aq)
MnO2 + Al = Al2O3 + Mn =>
3 MnO2 + 4 Al = 2 Al2O3 + 3 Mn
N2O4 + H2O = HNO3 + NO =>
3 N2O4 + 2 H2O = 4 HNO3 + 2 NO
NaNO3 + PbO = Pb(NO3)2 + Na2O =>
2 NaNO3 + PbO = Pb(NO3)2 + Na2O
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
C5H8O2 + NaH + HCl = C5H12O2 + NaCl =>
C5H8O2 + 2 NaH + 2 HCl = C5H12O2 + 2 NaCl
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
Pb(NO3)2(aq) + NaI(aq) = PbI2(l) + NaNO3(aq) =>
Pb(NO3)2(aq) + 2 NaI(aq) = PbI2(l) + 2 NaNO3(aq)
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
H2O2 + I = H2O + IO =>
H2O2 + I = H2O + IO
HSiCl3 + H2O = H10Si10O15 + HCl =>
10 HSiCl3 + 15 H2O = H10Si10O15 + 30 HCl
BCl3 + H2 = B + HCl =>
2 BCl3 + 3 H2 = 2 B + 6 HCl
Mn + Na2(CO3) = MnCO3 + Na =>
Mn + Na2(CO3) = MnCO3 + 2 Na
Al2Si2O5(OH)4 = Al2Si2O5{4+} + OH{-} =>
Al2Si2O5(OH)4 = Al2Si2O5{4+} + 4 OH{-}
Pb(NO3)2(aq) + NaI(aq) = PbI2(s) + NaNO3(aq) =>
Pb(NO3)2(aq) + 2 NaI(aq) = PbI2(s) + 2 NaNO3(aq)
NaHCO3 = Na2CO3 + CO2 + H2O =>
2 NaHCO3 = Na2CO3 + CO2 + H2O
B2O3 + NaOH = Na3BO3 + H2O =>
B2O3 + 6 NaOH = 2 Na3BO3 + 3 H2O
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Fe2O3 + H2O = Fe(OH)3 =>
Fe2O3 + 3 H2O = 2 Fe(OH)3
B2O3 + H2O = H3BO3 =>
B2O3 + 3 H2O = 2 H3BO3
Fe + S = FeS =>
Fe + S = FeS
C7H16 + O2 = CO2 + H2O =>
C7H16 + 11 O2 = 7 CO2 + 8 H2O
Ca3P2(aq) + H2O(l) = Ca(OH)2(aq) + PH3(aq) =>
Ca3P2(aq) + 6 H2O(l) = 3 Ca(OH)2(aq) + 2 PH3(aq)
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
BeCl2 + NaNo3 = Be(No3)2 + NaCl =>
BeCl2 + 2 NaNo3 = Be(No3)2 + 2 NaCl
NaCl + H2O = NaOH + Cl2 + H2 =>
2 NaCl + 2 H2O = 2 NaOH + Cl2 + H2
Cu + HNO3 = Cu(NO3)2 + H2O + NO =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 4 H2O + 2 NO
CH3COO{-}(aq) + C2H6O2(aq) = C6H10O4 + OH{-}(aq) =>
2 CH3COO{-}(aq) + C2H6O2(aq) = C6H10O4 + 2 OH{-}(aq)
CaF2 + H2SO4 = CaSO4 + HF =>
CaF2 + H2SO4 = CaSO4 + 2 HF
Fe + S = FeS2 =>
Fe + 2 S = FeS2
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
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