Hydrogen gas is produced using the following reaction of STP. 2HCI + Mg --> MgCI2 + H2

how many liters of hydrogen gas is produced, if 34.9 liters of hydrochloric acid (HCI) is put into the reaction​

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.