Answer:
I am almost positive that it is D. I might be incorrect do i appoligise if i am.
Explanation:
I'm assuming false but really have no clue
I would wager a guess that you're talking about microlattice.
Answer and explanation:
The mole ratio for Mg and MgO would be 2:2 or 1:1 because Mg has 2 as a coefficient and so does MgO, which is why you can simplify the ratio to 1:1
The mole ratio for O and MgO would be 1:2 because O has 1 as the coefficient and MgO has 2 as a coefficient.
