broo can i get help here how do i find the answer key to ap. ex sociology. i tried everything. (don't answer if your not going to help or i will report you)

How many moles of magnesium is 3.01 x10^22 atoms of magnesium?

Sodium nitrite (nano2) reacted with 2−iodooctane to give a mixture of two constitutionally isomeric compounds of molecular formula c8h17no2 in a combined yield of 88%. draw reasonable structures for these two isomers. click the "draw structure" button to launch the drawing utility. place the two compounds in the appropriate boxes below.

An atom of which element reacts with an atom of hydrogen to form a bond with the greatest degree of polarity ?