A molecule contains 18 atoms and undergoes a physical change. How does the physical change affect the total number of atoms of each element? (2 points)

How are evaporation and sublimation similar? a both involve the formation of a gas. b both release energy to the surroundings. c both take place throughout a solid. d both take place at the surface of a liquid.

Which of these is an intensive property of a substance

In a ball-and-stick molecular model, what do the sticks represent?