Question

Se dau urmatoarele ecuatii chimice:2Mg+O2→2MgO CuSo4+2NaOH→Cu(OH)2+NaSo4 Mg+Cl2→MgCl2 HCl+KOH→KCl+H2O. Se cer urmatoarele:a)sa se determine care reactii corespund procesele redox b)care elemente se oxideaza si care se reduc

Answer 1

Răspuns:

2Mg+O2=>2MgO

Mg⁰-2e=>Mg² oxidare agent redactor

O⁰2+2e=>O-² reducere agent oxidant

Mg+Cl2 =>MgCl2

Mg⁰-2e=>Mg² oxidare agent redactor

Cl⁰2+2e=>Cl-¹ reducere agent oxidant