Are these right?
Which of the following factors does NOT affect the behavior of a gas in a closed container?
the number of particles
the average kinetic energy*
the cohesive forces within the gas
the size of the container
Which is NOT a possible sign of a physical change?
change in appearance
change in volume
the release of energy*
change in color
Which of the following types of substances would be least likely to dissolve in water?
nonpolar molecule like cholesterol*
polar molecule like ethyl alcohol
ionic compound, such as magnesium chloride
polar mole like the