The total pressure of a sample is 1.35 atm, and the partial pressure of N2 in the sample is 0.742 atm. What is the mole fraction of N2 in the sample

b..

is the correct one

explanation:

covalent bonds form as valence electrons are shared between two atoms. lewis structures and structural formulas are common ways of showing the covalent bonding in organic molecules. formal charge describes the changes in the number of valence electrons as an atom becomes bonded into a molecule.

2b2t

explanation:

2b2t

the correct answer would be b. amelia, because the particals of gas move really fast (charged particals) and gas also has a lot of room (particals move independently) so the only answer that has both of those is amelia's.