Which of the following conditions must be met for a volume ratio to be created from a balanced chemical equation? a, Changing temperature and pressure b, Constant temperature and pressure c, Changing temperature and constant pressure d, Constant temperature and changing pressure

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.