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2 FES2 + 2 H2O + 7 O2 = 2 FESO4 + 2 H2SO4
S + H2SO4 = SO2 + H2O =>
S + 2 H2SO4 = 3 SO2 + 2 H2O
K + O2 = KO2 =>
K + O2 = KO2
Cu + HNO3 = Cu(NO3)2 + N2 + H2O =>
5 Cu + 12 HNO3 = 5 Cu(NO3)2 + N2 + 6 H2O
NaHCO3 + HCH3COOH = NaCH3COO + H2O + CO2 =>
9 NaHCO3 + 8 HCH3COOH = 9 NaCH3COO + 11 H2O + 7 CO2
S + F2 = SF4 =>
S + 2 F2 = SF4
S2Cl2 + NH3 = N4S4 + NH4Cl + S8 =>
6 S2Cl2 + 16 NH3 = N4S4 + 12 NH4Cl + S8
Hg + HSO4 = HgSO4 + H2O + SO2 =>
3 Hg + 4 HSO4 = 3 HgSO4 + 2 H2O + SO2
Fe + H2SO4 = FeSO4 + H2 =>
Fe + H2SO4 = FeSO4 + H2
C12H22O11 + O2 = CO2 + H2O =>
C12H22O11 + 12 O2 = 12 CO2 + 11 H2O
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
C3H6O3 + MnO4{-} + H{+} = CO2 + Mn{+2} + H2O =>
5 C3H6O3 + 12 MnO4{-} + 36 H{+} = 15 CO2 + 12 Mn{+2} + 33 H2O
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
HBr + CH3OH = CH3Br + H2O =>
HBr + CH3OH = CH3Br + H2O
C6H5OH + Br2 = C6H2Br3OH + HBr =>
C6H5OH + 3 Br2 = C6H2Br3OH + 3 HBr
Fe + O2 = Fe2O3 =>
4 Fe + 3 O2 = 2 Fe2O3
Cu(NO3)2 + NH4 = NH4NO3 + Cu =>
Cu(NO3)2 + 2 NH4 = 2 NH4NO3 + Cu
Na + I2 = NaI =>
2 Na + I2 = 2 NaI
K + O2 = KO2 =>
K + O2 = KO2
C2H15 + O2 = CO2 + H2O =>
4 C2H15 + 23 O2 = 8 CO2 + 30 H2O
Zn + CH3COOH = Zn(CH3COO) + H2 =>
2 Zn + 2 CH3COOH = 2 Zn(CH3COO) + H2
MnO4 + As2O3 + H2O + H{+} = H3AsO4 + Mn2{+} =>
8 MnO4 + 15 As2O3 + 43 H2O + 4 H{+} = 30 H3AsO4 + 4 Mn2{+}
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
Zn + HNO3 = Zn(NO3)2 + H2O + NO =>
3 Zn + 8 HNO3 = 3 Zn(NO3)2 + 4 H2O + 2 NO
Ca + H2O = Ca(OH)2 + H2 =>
Ca + 2 H2O = Ca(OH)2 + H2
HCl + Ca(OH)2 = CaCl2 + H2O =>
2 HCl + Ca(OH)2 = CaCl2 + 2 H2O
NaOH + Br2 = NaBrO3 + NaBr + H2O =>
6 NaOH + 3 Br2 = NaBrO3 + 5 NaBr + 3 H2O
H2O + CO2 = H2CO3 =>
H2O + CO2 = H2CO3
Cu2O = Cu + O2 =>
2 Cu2O = 4 Cu + O2
Ba3(PO4)2 + H3PO4 = Ba(H2PO4)2 =>
Ba3(PO4)2 + 4 H3PO4 = 3 Ba(H2PO4)2
C3H8 + O2 = CO2 + H2O =>
C3H8 + 5 O2 = 3 CO2 + 4 H2O
CaCl2 + AgNO3 = AgCl + Ca(NO3)2 =>
CaCl2 + 2 AgNO3 = 2 AgCl + Ca(NO3)2
Al(OH)3 + H2SO4 = Al2(SO4)3 + H2O =>
2 Al(OH)3 + 3 H2SO4 = Al2(SO4)3 + 6 H2O
C6H12O6 + O2 = CO2 + H2O =>
C6H12O6 + 6 O2 = 6 CO2 + 6 H2O
NaOH + CH3OH = CH3ONa + H2O =>
NaOH + CH3OH = CH3ONa + H2O
K2SO4(aq) + CaI2(aq) = CaSO4(s) + KI(aq) =>
K2SO4(aq) + CaI2(aq) = CaSO4(s) + 2 KI(aq)
P4 + O2 = P2O5 =>
P4 + 5 O2 = 2 P2O5
H2SO4 + NaOH = H2O + Na2SO4 =>
H2SO4 + 2 NaOH = 2 H2O + Na2SO4
Ca(HCO3)2 = CaCO3 + CO2 + H2O =>
Ca(HCO3)2 = CaCO3 + CO2 + H2O
MgCO3(s) = MgO(s) + CO2(g) =>
MgCO3(s) = MgO(s) + CO2(g)
Mg + P4 = Mg3P2 =>
6 Mg + P4 = 2 Mg3P2
HCl + FeS = FeCl2 + H2S =>
2 HCl + FeS = FeCl2 + H2S
NH4Cl + NaOH = NH3 + H2O + NaCl =>
NH4Cl + NaOH = NH3 + H2O + NaCl
NH3 = N2 + H2 =>
2 NH3 = N2 + 3 H2
FeSO4 + HCl = FeCl2 + H2S + O4 =>
FeSO4 + 2 HCl = FeCl2 + H2S + O4
NaHCO3 + H3BO3 = Na3BO3 + H2O + CO2 =>
3 NaHCO3 + H3BO3 = Na3BO3 + 3 H2O + 3 CO2
MgBr + Cl = MgCl2 + Br2 =>
2 MgBr + 4 Cl = 2 MgCl2 + Br2
CH3COOH + NaHCO3 = NaCH3COO + H2CO3 =>
CH3COOH + NaHCO3 = NaCH3COO + H2CO3
NH4Cl + NaOH = NH3 + H2O + NaCl =>
NH4Cl + NaOH = NH3 + H2O + NaCl
KO2 + H2O = KOH + O2 =>
4 KO2 + 2 H2O = 4 KOH + 3 O2
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