Answer:
Percentage of magnesium must be in the compound is 55%.
Explanation:
Percentage of magnesium in the compound = x
Percentage of nitrogen the compound = 45%
Magnesium and nitrogen together form 100 of the compound.
[tex]100\%=x+45\%[/tex]
[tex]x=100\%-45\%=55\%[/tex]
Percentage of magnesium must be in the compound is 55%.
