What is the iupac name of the following compound? 4-hydroxy-3-methylbutanoic acid 3-hydroxy-2-methylbutanoic acid 1-hydroxy-2-methylbutanoic acid 3-(hydroxymethyl)butanoic acid

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.