Answer:
d) 60%
Explanation:
Given the chemical formula;
MgO = Magnesium oxide.
First of all, we would determine the relative molecular mass (RMM) of MgO.
Atomic mass of Mg = 24
Atomic mass of O = 16
RMM (MgO) = 24 + 16 = 40 g/mol
Next, we would find the percent by mass of magnesium (Mg);
% Mg = 24/40 * 100
% Mg = 2400/40
% Mg = 60 percent.
Answer:
The U.S. purchased Florida with the signing of Florida Purchase Treaty. Spain and Britain owned Florida at first. Spain did not need Florida, and it was burden to them. So they got rid of it with the U.S.
Explanation:
I hope this helps.
<span>Samuel Cooper and </span><span>Rober E Lee - Confederates
</span><span>Ulysses S Grant - Union </span>
