Question

2Mg + O2 → ??????????????

Answer 1

2Mg+O2-> Mgo

Magnesium combine with oxygen to form Magnesium oxide.

Hope it is helpfull...

Answer 2

$\huge\bold{Question:}$

2Mg + O2 → ?

$\huge\bold{Answer:}$

2Mg + O2 → 2MgO