State the Arrhenius, Bronsted-Lowry, and Lewis definitions of acids and bases. Given an acid-base reaction equation, pick out the acid, base, conjugate acid, and conjugate base. Know the definition of conjugate acids and bases. Describe what is meant by an amphoteric species. Write the equation for the self ionization of water and know the ion product constant expression for water and its value at 25 degrees. Know the difference between reactions going to completion () and reactions reaching an equilibrium condition ( ). Define what is meant by pH and pOH. How are they related?