Eddie has a container of water. the water in the container has a mass of 25 grams. he places the container in the freezer and the water freezes. which of the following is true? a. the mass of the ice is more than 25 grams. b. the mass of the ice is less than 25 grams. c. there is no way to determine the mass of the ice. d. the ice has a mass of 25 grams.

Aglow stick contains a glass vial with chemicals. when the glow stick is bent, the vial breaks and the chemicals react to produce a glow. a science student observes that a glow stick kept in the freezer glows for a longer duration than a glow stick kept at room temperature. what conclusion can be drawn based on the observation? be sure to note the outcome and test variables in the conclusion.

What does the symbol (–hfus) indicate in a phase change?

What effect would average population growth have on land usage? a. urban use of land would rise to more than 30 percent of available land. b. industrial use of land would rise to more than 30 percent of available land. c. the percentage of available land used as cropland would stay the same. d. cropland would fall to about 10 percent of available land.