What mass of Oxygen (O2) gas will react with 24 g of magnesium(Mg) to produce magnesium oxide(MgO)?

What mass of Oxygen (O2) gas will react with 24 g of magnesium(Mg) to

1.	What mass of Oxygen (O2) gas will react with 24 g of magnesium(Mg) to produce magnesium oxide(MgO)?
Answer» Formula MASS of magnesium oxide is 40 (24 + 16). This 24 is the mass of magnesium and 16 is the mass of OXYGEN. So MgO is just the sum of mass of magnesium and oxygen. We are told that 24 g of Mg produces 40 g of MgO when it reacts with 16 g of oxygen. I HOPE It Helped Uh.... ☺✌