1.When molecules change state of matter from a liquid to a solid, then _______________.

A.there is no change in the kinetic energy of the molecules.


B.the kinetic energy of the molecules increases.


C.the molecules stop moving.


D.the kinetic energy of the molecules decreases.
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2.Timothy and Kelsy put an ice cute on top of a sodium bicarbonate tab. Over time, they witnessed bubbling coming from the place where the ice cube and tab meet.

Which of the following represents a similar kind of change in matter?

A.Baking a birthday cake for your mother.

B.Filling up a balloon with hot air.


C.Taking a glass of water and freezing it by placing it in the freezer


D.Your dog ripping up your homework.
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3.An example of a chemical property is the ___________.

A.mass of a substance per unit volume


B.ability to dissolve in solution


C.point where solid becomes liquid


D.tendency to undergo oxidation