Multiple Choice dei the choice thar best cowpleres rhe staemenr or answers the question Metal hydroxides that can act either as Lewis acids or Lewis bases are described as a. amphiphilic. b. amphihydrous 1. d. amphihydric e. amphiphobic. 2.-The amino acid alanine has a neutral side-chain with no acid-base properties. At pH = 7, it will be a b. cation neutral molecule with no charged groups. singly charged anion. e. doubly charged anion. What is the base-ionization equilibrium constant for an aqueous solution of ammonia, NH,?