Question

Question #37133

Answer 1

See below

Explanation:

This reaction can be written as two half-equations which can be combined.

`"Mg"` `("s") rarr "Mg"^(2+)` `("aq") + 2e^-`

`1/2"O"_2` `("g") + 2e^(-) rarr "O"^(2-)`

Combining the two gives:

`"Mg"` `("s")+ 1/2"O"_2` `("g") rarr "MgO"`