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.
they were very violet during the time of the mongolian empire , they took over land constantly
He believed that the Arabic Numeral System was more efficient than the Roman Numeral System.
He also believed that his system, named the Fibonacci Sequence, occurred throughout nature in processes like evolution and even the distances of the planets from the sun (which is crazy). There's still debate on whether it really applies or not, but the number of things things people have found that do work is immense.
