An uncharged atom of gold has an atomic number of 79 and an atomic mass of 197. this atom has protons, neutrons, and electrons.

What pressure will be exerted by 0.675 moles of a gas at 25*c if it is in a 0.750-l container?

When an object falls through the air and encounters air resistance its overall speed will be than if it had not encountered air resistance? (one word answer)

Three cards with holes are arranged in a straight line. a light is shined through the first card’s hole and travels through all three cards. what does this tell you about light rays? a) that light is reflected b) that light is refractive c) that light travels in a straight line d) that light does not travel in a straight line