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2 SO2 + O2 = 2 SO3
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
MnO2 + HCl = MnCl2 + H2O + Cl2 =>
MnO2 + 4 HCl = MnCl2 + 2 H2O + Cl2
NO2 = O2 + N2 =>
2 NO2 = 2 O2 + N2
Be + HCl = BeCl2 + H2 =>
Be + 2 HCl = BeCl2 + H2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Zn(OH)2 + H2SO4 = ZnSO4 + HOH =>
Zn(OH)2 + H2SO4 = ZnSO4 + 2 HOH
Na2SO3 = Na2S + Na2SO4 =>
4 Na2SO3 = Na2S + 3 Na2SO4
CH3COOH + H2O3 = C2H6O5 =>
CH3COOH + H2O3 = C2H6O5
CuO + HCl = CuCl2 + H2O =>
CuO + 2 HCl = CuCl2 + H2O
Fe + Cl2 = FeCl3 =>
2 Fe + 3 Cl2 = 2 FeCl3
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
Au + H2SeO4 = Au2(SeO4)3 + H2SeO3 + H2O =>
2 Au + 6 H2SeO4 = Au2(SeO4)3 + 3 H2SeO3 + 3 H2O
Mg + HNO3 = Mg(NO3)2 + H2O + NO2 =>
Mg + 4 HNO3 = Mg(NO3)2 + 2 H2O + 2 NO2
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
K2Cr2O7 + H2SO4 + FeSO4 = K2SO4 + Fe2(SO4)3 + Cr2(SO4)3 + H2O =>
K2Cr2O7 + 7 H2SO4 + 6 FeSO4 = K2SO4 + 3 Fe2(SO4)3 + Cr2(SO4)3 + 7 H2O
Pb(NO3)2 + KI = PbI2 + KNO3 =>
Pb(NO3)2 + 2 KI = PbI2 + 2 KNO3
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
Na + Cl2 = NaCl =>
2 Na + Cl2 = 2 NaCl
SO2 + H2O = H2SO3 =>
SO2 + H2O = H2SO3
NaHCO3 + HCl = NaCl + H2O + CO2 =>
NaHCO3 + HCl = NaCl + H2O + CO2
CH4 + O2 = CO2 + H2O =>
CH4 + 2 O2 = CO2 + 2 H2O
CuFeS2 + O2 = CuS + FeO + SO2 =>
2 CuFeS2 + 3 O2 = 2 CuS + 2 FeO + 2 SO2
NH3 + HCl = NH4Cl =>
NH3 + HCl = NH4Cl
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
HNO3 + Sr(OH)2 = Sr(NO3)2 + H2O =>
2 HNO3 + Sr(OH)2 = Sr(NO3)2 + 2 H2O
Cl2O7 + H2O = HClO4 =>
Cl2O7 + H2O = 2 HClO4
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
Fe2O3 + H2O = Fe(OH)3 =>
Fe2O3 + 3 H2O = 2 Fe(OH)3
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
Ag + H2S + O2 = Ag2S + H2O =>
4 Ag + 2 H2S + O2 = 2 Ag2S + 2 H2O
CS2 + O2 = CO2 + SO2 =>
CS2 + 3 O2 = CO2 + 2 SO2
H2SO4 + HI = I2 + SO2 + H2O =>
H2SO4 + 2 HI = I2 + SO2 + 2 H2O
Ba(OH)2 + H3PO4 = Ba3(PO4)2 + HOH =>
3 Ba(OH)2 + 2 H3PO4 = Ba3(PO4)2 + 6 HOH
PbO + HNO3 = Pb(NO3)2 + H2O =>
PbO + 2 HNO3 = Pb(NO3)2 + H2O
Na + MgF2 = NaF + Mg =>
2 Na + MgF2 = 2 NaF + Mg
Fe2O3 + C = Fe + CO2 =>
2 Fe2O3 + 3 C = 4 Fe + 3 CO2
H2 + F2 = HF =>
H2 + F2 = 2 HF
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
NaCl + I2 = NaI + Cl2 =>
2 NaCl + I2 = 2 NaI + Cl2
Bi2(CO3)3 = Bi2O3 + CO2 =>
Bi2(CO3)3 = Bi2O3 + 3 CO2
C3H6 + O2 = CO2 + H2O =>
2 C3H6 + 9 O2 = 6 CO2 + 6 H2O
MnO2 + HCl = MnCl2 + H2O + Cl2 =>
MnO2 + 4 HCl = MnCl2 + 2 H2O + Cl2
Sr + N2 = Sr3N2 =>
3 Sr + N2 = Sr3N2
H2SO4 + NaOH = Na2SO4 + H2O =>
H2SO4 + 2 NaOH = Na2SO4 + 2 H2O
Cu + HNO3 = Cu(NO3)2 + NO + H2O =>
3 Cu + 8 HNO3 = 3 Cu(NO3)2 + 2 NO + 4 H2O
H2S + O2 = SO2 + H2O =>
2 H2S + 3 O2 = 2 SO2 + 2 H2O
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