A 96 kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 370 N . For the first 12 m the floor is frictionless, and for the next 12 mthe coefficient of friction is 0.23.Part AWhat is the final speed of the crate?

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.

True will be your answer dude

Answer(a)   the matererials that are in contact, the two materials and the nature of their surfaces/// (b)/// the force pushing the two surfaces together, pushing the surfaces together causes the more of the asperities to come together and increases the surface area in contact with each other