Basic principles of structure and reactivity. Microscopic nature of atoms and molecules; the macroscopic properties of chemical systems. Topics include stoichiometry, thermochemistry, atomic structure, molecular structure, properties of gases. (Gen.Ed. PS) Prerequisites: MATH 101 and MATH 102, or its equivalent of MATH 104, or a score of 20 or higher on Part "A" of the Math Placement test, or MATH 127, 128, 131, or 132. Note: a maximum of 5 units may be received for both CHEM 101 and CHEM 102, or 2 units for either, if CHEM 111 is completed.