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4 Fe + 3 O2 = 2 Fe2O3
Cu + O2 = Cu2O =>
4 Cu + O2 = 2 Cu2O
Mg + HCl = H2 + MgCl2 =>
Mg + 2 HCl = H2 + MgCl2
FeSO4 + NaOH = Fe(OH)2 + Na2SO4 =>
FeSO4 + 2 NaOH = Fe(OH)2 + Na2SO4
CH3CHO + I2 = CHI3 + H2O =>
CH3CHO + 3 I2 = 2 CHI3 + H2O
Ba(OH)2 + H2SO3 = H2O + BaSO3 =>
Ba(OH)2 + H2SO3 = 2 H2O + BaSO3
CO2 + H2O + Na2O2 = NaHCO3 + O2 =>
4 CO2 + 2 H2O + 2 Na2O2 = 4 NaHCO3 + O2
TiO2 + Cl2 = TiCl4 + O2 =>
TiO2 + 2 Cl2 = TiCl4 + O2
H2O + CO2 = H2CO3 =>
H2O + CO2 = H2CO3
CH3CH2CH2CH3 + O2 = CO2 + H2O =>
2 CH3CH2CH2CH3 + 13 O2 = 8 CO2 + 10 H2O
Al + H2O + H2SO4 + KOH = H2 + KAl(SO4)2*12H2O =>
2 Al + 22 H2O + 4 H2SO4 + 2 KOH = 3 H2 + 2 KAl(SO4)2*12H2O
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
Zn + Cd + Cr + Se = Zn6Cd4Cr20Se40 =>
6 Zn + 4 Cd + 20 Cr + 40 Se = Zn6Cd4Cr20Se40
CH3(CH2)7CH3 + O2 = CO2 + H2O =>
CH3(CH2)7CH3 + 14 O2 = 9 CO2 + 10 H2O
Fe2O3 + HNO3 = Fe(NO3)3 + H2O =>
Fe2O3 + 6 HNO3 = 2 Fe(NO3)3 + 3 H2O
Al(OH)3 = Al2O3 + H2O =>
2 Al(OH)3 = Al2O3 + 3 H2O
HBr + KOH = H2O + KBr =>
HBr + KOH = H2O + KBr
Al + O2 = Al2O3 =>
4 Al + 3 O2 = 2 Al2O3
Cu2CO3(OH)2 = CO2 + CuO + H2O =>
Cu2CO3(OH)2 = CO2 + 2 CuO + H2O
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
CoCl2 + NH4OH = Co(OH)Cl + NH4 + Cl =>
CoCl2 + NH4OH = Co(OH)Cl + NH4 + Cl
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
NH3 + O2 = H2O + NO =>
4 NH3 + 5 O2 = 6 H2O + 4 NO
Al2(So4)3 + LiOH = Al(OH)3 + Li2So4 =>
Al2(So4)3 + 6 LiOH = 2 Al(OH)3 + 3 Li2So4
HI + NaOH = H2O + NaI =>
HI + NaOH = H2O + NaI
Mg + O2 = MgO =>
2 Mg + O2 = 2 MgO
Cu + H3PO4 = Cu3(PO4)2 + H2 =>
3 Cu + 2 H3PO4 = Cu3(PO4)2 + 3 H2
H2O + Na = H2 + NaOH =>
2 H2O + 2 Na = H2 + 2 NaOH
CH3CH3 + O2 = CO2 + H2O =>
2 CH3CH3 + 7 O2 = 4 CO2 + 6 H2O
Na + H2O = NaOH + H2 =>
2 Na + 2 H2O = 2 NaOH + H2
HClO4 + KOH = H2O + KClO4 =>
HClO4 + KOH = H2O + KClO4
FeSo4 + NaOh = Fe(Oh)2 + Na2So4 =>
FeSo4 + 2 NaOh = Fe(Oh)2 + Na2So4
CO2 + Mg = C + MgO =>
CO2 + 2 Mg = C + 2 MgO
H2O + PCl5 = H3PO4 + HCl =>
4 H2O + PCl5 = H3PO4 + 5 HCl
BaCl2 + Na2SO4 = BaSO4 + NaCl =>
BaCl2 + Na2SO4 = BaSO4 + 2 NaCl
CH3CH2OH + O2 = CO2 + H2O =>
CH3CH2OH + 3 O2 = 2 CO2 + 3 H2O
NaClO3 = NaCl + O2 =>
2 NaClO3 = 2 NaCl + 3 O2
Ca + O2 = CaO =>
2 Ca + O2 = 2 CaO
Fe2O3 + H2O = Fe(OH)3 =>
Fe2O3 + 3 H2O = 2 Fe(OH)3
KI + Pb(NO3)2 = KNO3 + PbI2 =>
2 KI + Pb(NO3)2 = 2 KNO3 + PbI2
F2 + K = KF =>
F2 + 2 K = 2 KF
H3PO4 + Mg(OH)2 = H2O + Mg3(PO4)2 =>
2 H3PO4 + 3 Mg(OH)2 = 6 H2O + Mg3(PO4)2
AgNO3 + NaCl = AgCl + NaNO3 =>
AgNO3 + NaCl = AgCl + NaNO3
HgO = Hg + O2 =>
2 HgO = 2 Hg + O2
NaNH2 + NaNO3 = NH3 + NaN3 + NaOH =>
3 NaNH2 + NaNO3 = NH3 + NaN3 + 3 NaOH
KClO3 = KCl + O2 =>
2 KClO3 = 2 KCl + 3 O2
H2O + Mg = H2 + Mg(OH)2 =>
2 H2O + Mg = H2 + Mg(OH)2
C5H12 + O2 = CO2 + H2O =>
C5H12 + 8 O2 = 5 CO2 + 6 H2O
Ca(OH)2 + HNO3 = Ca(NO3)2 + H2O =>
Ca(OH)2 + 2 HNO3 = Ca(NO3)2 + 2 H2O
Na2S(aq) + Cu(NO3)2(aq) = NaNO3 + CuS(s) =>
Na2S(aq) + Cu(NO3)2(aq) = 2 NaNO3 + CuS(s)
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