which lists all of the substances that appear in equilibrium constant expressions?\n pure gas and pure…

which lists all of the substances that appear in equilibrium constant expressions?\n pure gas and pure liquid\n pure gas and aqueous solution\n pure solid and pure liquid\n aqueous solution and pure liquid
Answer
Brief Explanations:
In equilibrium - constant expressions, pure solids and pure liquids are not included. Only gases and substances in aqueous solutions are included because their concentrations can change significantly during a reaction.
Answer:
pure gas and aqueous solution