Name the three common states of matter on earth. Which states of matter have a set shape? Explain why this is, based on the animations you observed for the different states of matter. Which states of matter have a set volume? Explain why this is, based on the animations you observed for the different states of matter. The boiling point is the temperature at which a liquid substance will turn to vapor, and also the temperature at which vapor will condense to a liquid. The boiling point of ethanol is about 80°C, and the boiling point of water is about 100°C. What can you conclude about the intermolecular forces in water and ethanol? Do you predict water freezes at a higher temperature or at a lower temperature than ethanol? Recall how different Van der Waals attractions and how ionic charges changed the movement of atoms in the animation. Do you think that Van der Waals attractions or ionic charges are stronger? Why?