The gold foil experiment demonstrated that 1) Electrons travel in circular paths around the nucleus
2) Electrons and protons are distributed evenly throughout the atom
3) Electrons are small, negative particles
4) Atoms are mostly empty space with a small, dense, positive center

If 22.5 liters of oxygen reacted with excess of hydrogen, how many liters of water vapor could be produced?

If the concentration of phosphate in the cytosol is 2.0 mm and the concentration of phosphate in the surrounding fluid is 0.1 mm, how could the cell increase the concentration of phosphate in the cytosol? a) passive transportb) diffusionc) active transportd) osmosise) facilitated diffusion

Light waves can move through , but they travel fastest when they move through a(n) .