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General Chemistry I

Fall 2026
Build the foundation for first-year college chemistry. General Chemistry I turns atoms, compounds, reactions, gases, solutions, and thermochemistry into one coherent problem-solving sequence. Students learn to move between particle models, formulas, equations, lab measurements, and quantitative reasoning without treating each unit as a separate rule list. Use this path for the first semester of a two-semester General Chemistry sequence, especially when students need steady practice before the course starts moving fast.

Built from a first-semester general chemistry progression: measurement, atoms, formulas, bonding, molecular structure, reactions, stoichiometry, gases, solutions, and thermochemistry.

Course map: ChemistryGraph sequence for the first semester of college general chemistry.
Coverage model: Topics follow a standard General Chemistry I progression for algebra-based quantitative chemistry.

General Chemistry I Learning Outcomes

Matter, Measurement, and Chemical Quantities

Build fluency with units, significant figures, density, dimensional analysis, and chemical formulas.
Use moles, molar mass, Avogadro's number, percent composition, and empirical formulas to connect samples to particles.

Atoms, Periodicity, and Electronic Structure

Explain atomic structure, isotopes, average atomic mass, light, and electron configurations.
Use periodic trends to predict atomic size, ionization energy, electronegativity, and reactivity.

Bonding and Molecular Structure

Model ionic, covalent, and metallic bonding and connect bonding type to properties.
Use Lewis structures, formal charge, resonance, VSEPR, polarity, and intermolecular forces to explain molecular behavior.

Chemical Reactions and Stoichiometry

Write, balance, and interpret chemical equations for precipitation, acid-base, combustion, and redox reactions.
Use limiting reactants, theoretical yield, percent yield, and solution stoichiometry to solve reaction problems.

Gases, Solutions, and Mixtures

Apply gas laws, partial pressures, and kinetic molecular theory to macroscopic gas behavior.
Analyze molarity, dilution, solubility, electrolytes, and colligative trends in solution contexts.

Thermochemistry

Track heat flow, calorimetry, specific heat, phase changes, and system-surroundings energy transfer.
Use enthalpy, Hess's law, formation reactions, and bond energies to explain reaction energy.

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What's next
General Chemistry II
Second-semester continuation.

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