My question is, that it's asking us to tell whether the partial pressure of a molecule will increase decrease of remain the same and to show it by a calculation? I don't which calculation to use. I have V T P and grams. I don't know what equation to use to show my prediction.

Which of the following observations indicates that there is a small, dense, positively charged part in the center of an atom? some uncharged particles are scattered by a gold foil. all uncharged particles are attracted towards a gold foil. all positively charged particles pass straight through a gold foil. some positively charged particles bounce back from a gold foil.