3. a sample of iron has a length of 2 cm, a width of 2 cm, and a height of 3 cm. if the mass
of this rectangular-shaped object is 94 g, what is the density of iron?

It won't lose or gain electrons if it's a covalent bond it shares the electrons with another atom or atoms. if it is an ionic bond it will lose the 3 electrons on the outer shell and become a positively charged ion.  credit goes to @sunshinebaby of answers.yahoo.com.

Answer it orbits high above earth to gain clearer images of light, it magnifies images relative to the human eye, it records most of the universe as it was in the past, not as it is now;