When a solid is dissolved in water. The outside of the beaker becomes cold to touch. What does this tell you about the process?
a. The enthalpy of the process is negative.
b. The dissolution process is exothermic.
c. The dissolution process is endothermic.
d. both a & b

Part of molten rock at mid-ocean ridges

Predict whether the changes in enthalpy, entropy, and free energy will be positive or negative for the boiling of water, and explain your predictions. how does temperature affect the spontaneity of this process?

The table compares the number of electrons in two unknown neutral atoms. comparison of electrons atom number of electrons a 10 d 11 use this information to determine the number of valence electrons in the atoms. which of the following correctly compares the stability of the two atoms? both are unreactive. both are highly reactive. a is unreactive and d is reactive. a is reactive and d is unreactive.