Diatomic O2 can react with the element magnesium to form magnesium oxide (MgO). The balanced chemical equation is:

Question

If 4 moles of magnesium totally reacted with more than enough O2, how many moles of MgO would be expected to form?

Answer 1

well, clearly, each mole of Mg produces one mole of MgO.

Answer 2

2Mg + O2 ==> 2MgO

Answer 3

4 mole