SYNTHESIS REACTIONS---HELP

[touma]

2 gases from the air reacted with the magnesium to create two different products. I need two separte equations that show this.

The reactants included magnesium, nitrogen, and H2O.....and the products were Ammonia, magnesium nitride and magnesium oxide...

The first equation ( i think) is Mg + N2 ------>MgN2 (not balanced)
The second equation ( i think ) is Mg +O2 ----->MgO2 (not balanced)