What pressure (in atmospheres) does a gas exert when at 385 mm of hg?

Who is better, messi or cristiano, i need this for a chemistry class. asap

How would the number of moles (n) of o2 change if the atmospheric pressure doubled but all other variables stayed the same

Select all of the statements which are true. electrons are located in shells or orbits around the atom. electrons orbit slowly around the atom. electrons travel in one flat path around the nucleus of an atom. the valence of an atom is determined by the number of electrons in the atom's outermost shell.