C. When anhydrous salts, which can exist in hydrated form dissolves, its enthalpy of solution is usually negative whereas when hydrated form of the same salt dissolves, its enthalpy of
solution is always positive. Explain

Use this information to determine the number of calends electrons in the atoms. which of the following correctly compares the stability of the two atoms? a) both are unreactive b) both are highly reactive c) a is unreactive and d is reactive d) a is reactive and d is unreactive