MgSO4+2K yields K2SO4+Mg. Would the oxidation reaction be 2K yields K2+e-2?And would the reduction be MG+e- yields Mg? Thanks.

Answer 1

The oxidation reaction would be

K yields K+ + e-

(When adding the reduction-half and oxidation-half, the oxidation equation will be multiplied by 2.)

Hope this helps.

Answer 2

The reduction equation is
Mg + 2e ==> Mg
Note the 2e, not 1e.