The pressure of a 4.80 L of Nitrogen gas in a flexible container is 1.0 atm at 300k. The pressure is decreased by 0.5 atm and its temperature increases to 600k. What is the new volume?

Which actions would increase the rate at salt dissolves in water? stir the water? crush the salt? use less water? heat the water? cool the salt

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

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.