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4 Cu + O2 = 2 Cu2O
Mg + H2SO4 = MgSO4 + H2 =>
Mg + H2SO4 = MgSO4 + H2
FeAsS = Fe + As + S =>
FeAsS = Fe + As + S
Na + O2 = Na2O =>
4 Na + O2 = 2 Na2O
HF + NaOH = NaF + H2O =>
HF + NaOH = NaF + H2O
N2 + O2 = N2O =>
2 N2 + O2 = 2 N2O
Ge(s) + O2(g) = GeO(s) =>
2 Ge(s) + O2(g) = 2 GeO(s)
N2 + O2 = N2O5 =>
2 N2 + 5 O2 = 2 N2O5
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
C(s) + H2(g) = CH4(g) =>
C(s) + 2 H2(g) = CH4(g)
FeS = Fe + S =>
FeS = Fe + S
C2H6 + O2 = CO2 + H2O =>
2 C2H6 + 7 O2 = 4 CO2 + 6 H2O
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
Na + KNO3 = K2O + Na2O + N2 =>
10 Na + 2 KNO3 = K2O + 5 Na2O + N2
H2O + KCl = KOH + Cl2 + H2 =>
2 H2O + 2 KCl = 2 KOH + Cl2 + H2
FeS2 + O2 = Fe2O3 + SO2 =>
4 FeS2 + 11 O2 = 2 Fe2O3 + 8 SO2
HF + NaOH = NaF + H2O =>
HF + NaOH = NaF + H2O
NaBr + Ca(OH)2 = CaBr2 + NaOH =>
2 NaBr + Ca(OH)2 = CaBr2 + 2 NaOH
Mg + CO2 = MgO + C =>
2 Mg + CO2 = 2 MgO + C
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
Al2(SO4)3 + NaOH = Al(OH)3 + Na2SO4 =>
Al2(SO4)3 + 6 NaOH = 2 Al(OH)3 + 3 Na2SO4
Cr2O3 + Na2CO3 + KNO3 = Na2CrO4 + CO2 + KNO2 =>
Cr2O3 + 2 Na2CO3 + 3 KNO3 = 2 Na2CrO4 + 2 CO2 + 3 KNO2
H2 + O2 = H2O =>
2 H2 + O2 = 2 H2O
AgNO3 + HCl = AgCl + HNO3 =>
AgNO3 + HCl = AgCl + HNO3
N2 + H2 = NH3 =>
N2 + 3 H2 = 2 NH3
C2H8 + O2 = H2O + CO2 =>
C2H8 + 4 O2 = 4 H2O + 2 CO2
AgNO3 + HCl = AgCl + HNO3 =>
AgNO3 + HCl = AgCl + HNO3
SiO2 + HF = SiF4 + H2O =>
SiO2 + 4 HF = SiF4 + 2 H2O
BaCl2 + H2SO4 = BaSO4 + HCl =>
BaCl2 + H2SO4 = BaSO4 + 2 HCl
CaCO3 + HCl = CaCl2 + H2CO3 =>
CaCO3 + 2 HCl = CaCl2 + H2CO3
Pb + S = PbS =>
Pb + S = PbS
CuO + CO = Cu + CO2 =>
CuO + CO = Cu + CO2
Li + HCl = LiCl + H2 =>
2 Li + 2 HCl = 2 LiCl + H2
Zn + S = ZnS =>
Zn + S = ZnS
S + Fe = FeS =>
S + Fe = FeS
FeSO4 + NaCl = FeCl2 + Na2SO4 =>
FeSO4 + 2 NaCl = FeCl2 + Na2SO4
Al2O3 + C = Al + CO2 =>
2 Al2O3 + 3 C = 4 Al + 3 CO2
Cu(s) + H2SO4(aq) = CuSO4(aq) + H2O(l) + SO2(g) =>
Cu(s) + 2 H2SO4(aq) = CuSO4(aq) + 2 H2O(l) + SO2(g)
Fe + As + S = FeAsS =>
Fe + As + S = FeAsS
Li + HCl = LiCl + H2 =>
2 Li + 2 HCl = 2 LiCl + H2
N2 + O2 = NO =>
N2 + O2 = 2 NO
Na2CO3 + HCl = NaCl + H2O + CO2 =>
Na2CO3 + 2 HCl = 2 NaCl + H2O + CO2
NH3 + CO2 = CN2H4O + H2O =>
2 NH3 + CO2 = CN2H4O + H2O
C8H18 + O2 = CO2 + H2O =>
2 C8H18 + 25 O2 = 16 CO2 + 18 H2O
NH3 + H2SO4 = (NH4)2SO4 =>
2 NH3 + H2SO4 = (NH4)2SO4
C7H17 + O2 = CO2 + H2O =>
4 C7H17 + 45 O2 = 28 CO2 + 34 H2O
HClO4 + Fe(OH)3 = H2O + Fe(ClO4)3 =>
3 HClO4 + Fe(OH)3 = 3 H2O + Fe(ClO4)3
NO = N2O + NO2 =>
3 NO = N2O + NO2
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
H2O2 = H2O + O2 =>
2 H2O2 = 2 H2O + O2
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