Fill in the blanks to balance the following chemical equation. HELP PLEASE

How many moles of carbon dioxide will form if 2.5 moles of c3h8 is burned

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.

May someone me with these science questions