Consider the reaction: 2H2O(l) + 2H2(g) → O2(g)

Using standard absolute entropies at 298K, calculate the entropy change for the system when 2.03 moles of H2O(l) react at standard conditions.

In order to calculate the amount of heat transferred you must know the __ and specific heat of the material, as well as the change in temperature. a. volume b. density c. mass d. enthalpy

If a polyatomic ionic compound has gained two hydrogen ions, then how does its name begin?

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.