Cu (II) + O2 →
Zn + O2 →
H2 + N2 (III) →
Fe (II) + O2 →
Fe (III) + O2 →
Al + Cl2 →
Al + S →
Mg+O2=
Na +Cl2 =
H2 + O2=
Al + S =
Fe (III)+ Cl2 =
Zn + N2 =
N2 (III) + O2 =
Cu + N2 =
Na + H2 =
Zn + N2 =
N2 (IV) + O2 =
Na + N2 =
254
466
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