If a balanced reaction takes place in a sealed container how should the mass before the reaction begins compare to the mass after the reaction ends?

Which statement can best be concluded from the ideal gas law?

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 statement goes against the kinetic theory of gases