You place a balloon in a closed chamber at standard temperature and pressure (stp). you cool the chamber to half of its original temperature while leaving the pressure constant. what happens to the balloon?

it stays the same volume.

it decreases to one-half of its original volume.

it doubles in volume.

it expands to four times its original volume.

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.