Which statement defines the enthalpy of hydration? the change in enthalpy when 1 mol of a gaseous ion becomes fully hydrated
the change in enthalpy when gas ions condense to form 1 mol of an ionic solid
the change in enthalpy as heat is lost or gained in a reaction
the change in enthalpy as temperature rises in a liquid

16. in a reaction that has reached equilibrium, a. the forward and reverse reactions are occurring at the same rate. b. the reactants and products are in equal concentrations. c. the forward reaction has gone further than the reverse reaction. d. there are equal numbers of atoms on both sides of the equation. e. a, b, and d are correct.