Credits: 4An investigation of the fundamental structure of matter and chemical terminology. Introduces topics such as solution chemistry, thermochemistry and gas laws. Designed for science and pre-professional majors. Students enrolled in CHEM 121 should have taken or have concurrent enrollment in MATH 127 or MATH 128. Prerequisite(s):CHEM 103 or CHEM 110; or a passing score on the Chemistry Placement Exam.