Why does ground water have more dissolved substances than surface water?

Using the periodic table, complete the table to describe each atom. type in your answers

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.

What is the vapor pressure of a solution with a benzene to octane?