What food item will provide 1 mole of sodium in the least mass? What is that mass?

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.

Select all of the methods through which a drug can enter your body. injection swallowing inhalation absorption

All motion is caused by force? true or false