Fe + HCl -> FeCl2 + H22Fe + 6HCl -> 2FeCl2 + 3H2
C3H8 + O2 -> CO2 + H2OC3H8 + 5O2 -> 3CO2 + 4H2O
NaOH + HCl -> NaCl + H2ONaOH + HCl -> NaCl + H2O
Al + O2 -> Al2O34Al + 3O2 -> 2Al2O3
Fe + HCl -> FeCl2 + H2
2Fe + 6HCl -> 2FeCl2 + 3H2
C3H8 + O2 -> CO2 + H2O
C3H8 + 5O2 -> 3CO2 + 4H2O
NaOH + HCl -> NaCl + H2O
NaOH + HCl -> NaCl + H2O
Al + O2 -> Al2O3
4Al + 3O2 -> 2Al2O3