1. This document provides a review of basic chemistry concepts that AP Biology students should already be familiar with, including: the symbols and charges of common elements, molecular and structural formulas, molarity calculations, water properties, pH, buffers, isomers and functional groups. 2. Students are instructed to add this review material to their AP Biology binder for reference. The review covers topics like atomic structure, compounds, solutions, acid-base chemistry and organic chemistry basics. 3. Examples of important concepts highlighted are water's polar nature and how it relates to biological phenomena, the importance of small pH changes in living systems, what buffers are and how they function in organisms, and why carbon is the central atom in