Let me explain and you do the rest.
Burning Mg in air leads both to MgO and Mg3N2.You want the MgO; you don't want the Mg3N2. The amount of MgO is reduced; the amount of oxygen in the MgO is reduced.
If in Part B.2, the burning of the magnesium is uncontrolled (burns brightly), how will this procedural error affect the reported mass of:
a Magnesium in the magnesium oxide? Explain.
B. oxygen in the magnesium oxide? Explain.
2 answers
Ok, I think I get it now. Thank you so much!