The amino group of glycine, which has a pKa of 9.6, can exist either in the protonated form (-NH3+ ) or as the free base (-NH2), because of the reversible Is the amino acid methionine classified as polar neutral, polar charged,...
Classify the bonding in each of the following molecules as ionic, polar covalent, or nonpolar covalent. Identify each of the following solids as molecular, ionic, or atomic: 1. CO_2(s). 2. Ni (s). 3. I_2(s). 4. CaCl(s). ...
Crystalline solids have their constituent particles arranged in a definite and a long-range order pattern. On the basis of the type of binding attractive force, they are classified into metallic, ionic, covalent, or molecular solids. Answer and ...