Asked by Jason

which of these reactions if spontaneous?
(a) Fe^0 + Mg +2 --> Mg^0 +Fe+2
(b) Fe+2 + Mg ^0 --> Fe^0 + Mg +2

write the half cell equations for the spontaneous reaction.

which element is oxidized and which is reduced?

Answers

Answered by DrBob222
Look up the reduction potentials and calculate Ecell. If Ecell is positive the reaction is spontaneous.

The element oxidized is the element that lost electrons. Reduction is the gain of electrons.
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