CHM-120 General Chemistry I begins SNHU's rigorous, sequential general chemistry track, building the atomic structure, stoichiometry, and reaction chemistry foundation that science, health science, and pre-professional students need before continuing into CHM-121 General Chemistry II.
The first course in a required sequence
As 'General Chemistry I,' the course is explicitly positioned as the start of a two-part sequence, meaning its content is deliberately structured to set up the concepts CHM-121 builds on next.
A foundation for science and pre-professional study
CHM-120 targets students in science, health science, or pre-professional programs, building the atomic structure and stoichiometric reasoning that underpins later coursework in biology, biochemistry, and health sciences.
Key topics in CHM120
- Atomic structure and periodicity
- Stoichiometry and chemical reactions
- Bonding and molecular structure
- Gas laws and states of matter
- Thermochemistry fundamentals
- Foundational lab techniques for general chemistry
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Worked example: sequencing set up for CHM-121
- CHM-120 focus: Atomic structure, stoichiometry, and bonding as foundational concepts
- CHM-121's continuation: Building on that atomic-level foundation into more complex reaction types and equilibrium systems
- Lesson: CHM-120 teaches its content with the explicit understanding that CHM-121 will build directly on it, making sequence completion important for genuine understanding
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Frequently asked questions
Students heading into science, health science, or pre-professional programs typically need chemistry knowledge that continues to build in rigor across multiple semesters — supporting later coursework in biology, biochemistry, or clinical sciences — which is why CHM-120 is structured as the deliberate first step of a sequence (continuing into CHM-121) rather than a standalone general-education course like CHM-101. This sequential design ensures these students build the depth of chemistry knowledge their subsequent major coursework will assume.
Since CHM-120 is designed as the first half of a two-course general chemistry sequence, its content deliberately sets up concepts (like atomic structure and stoichiometry) that CHM-121 then builds into more advanced material (equilibrium, kinetics, more complex reaction types); a student who doesn't continue the sequence would have foundational chemistry knowledge but would be missing the more advanced concepts many science and pre-professional programs specifically require. Students should confirm with their program requirements whether both courses in the sequence are needed.