What pressure will be exerted by 2.01 mol hydrogen gas in a 6.5 l cylinder at 20°c? 7900 kpa 280 kpa 460 kpa 750 kpa

Describe the chemical reaction based on the chemical equation below. also, explain whether the equation is balanced.

The nuclear fission process releases neutrons and question 27 options: alpha particles electrons energy beta particles

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.