Western Governors University

C672: General Chemistry I with Lab

A study guide to WGU's C672, the first general chemistry course with lab for teachers seeking a secondary chemistry endorsement.

Updated October 2026 · 5 min read

C672 General Chemistry I with Lab is a Western Governors University course that introduces chemistry to licensed teachers seeking an additional license or endorsement in secondary chemistry.

WGU describes the course as examining the electronic structure of atoms, studying periodic trends, naming chemical compounds, writing chemical formulas, determining the structure of molecules, balancing chemical reactions and exploring changing states of matter.

Laboratory experiences support the study of matter and the application of lab safety and maintenance procedures.

It sits in the M.A. Science Education (Secondary Chemistry). Students often find the pace of new vocabulary and rules demanding, especially naming and electron configurations.

Course at a Glance

ItemDetails
UniversityWestern Governors University (WGU)
Course codeC672
ProgramM.A. Science Education (Secondary Chemistry)
LevelGraduate, competency-based
Followed byGeneral Chemistry II with Lab (C673)
Typical workProblem solving, laboratory work, lab safety

What C672 Covers

TopicKey skills
Electronic structure of atomsElectron configurations, energy levels, orbitals
Periodic trendsAtomic radius, ionisation energy, electronegativity
Naming compounds and writing formulasIonic and covalent nomenclature
Molecular structureLewis structures and molecular shapes
Balancing reactionsConservation of atoms in equations
States of matterPhase changes and particle behavior
Laboratory practiceSafety and maintenance procedures

Key Concepts with Worked Examples

Electron Configuration

Electrons fill orbitals in order of increasing energy: 1s, 2s, 2p, 3s, 3p, 4s, 3d and so on.

Example: Sulfur has 16 electrons: 1s² 2s² 2p⁶ 3s² 3p⁴. Its six outer electrons explain why it tends to gain two electrons to form S2-, and why it sits in group 16 with oxygen.

Periodic Trends

Across a period, atomic radius decreases and electronegativity increases as nuclear charge grows. Down a group, radius increases as new shells are added. Explaining trends from atomic structure is better than memorizing them.

Balancing Equations

Adjust coefficients, never subscripts, until each element has the same number of atoms on both sides.

Example: CH₄ + O₂ → CO₂ + H₂O. Balance carbon (already 1), then hydrogen (2H₂O), then oxygen (2O₂): CH₄ + 2O₂ → CO₂ + 2H₂O.

Typical Assignments and How to Approach Them

WGU assesses competency through performance assessments or objective assessments. Check your course page for the current format. Work in this course typically includes:

Task typeWhat it testsHow to approach it
Nomenclature problemsNaming and formulasDecide ionic or covalent first
Structure questionsLewis structures and shapeCount valence electrons carefully
Equation balancingConservation of massBalance elements in a set order
Lab reportsInvestigation and safetyRecord data, analyze and discuss error

Lab Safety and Maintenance

WGU's description names lab safety and maintenance procedures directly, and they matter for a future teacher responsible for a classroom lab:

A Quick Guide to Naming Compounds

Nomenclature is one of the first hurdles in C672. The key is deciding which system applies:

Compound typeRuleExample
Ionic (metal + non-metal)Cation name, then anion with -ideNaCl, sodium chloride
Ionic with transition metalRoman numeral shows chargeFeCl₃, iron(III) chloride
Ionic with polyatomic ionUse the ion's nameCaCO₃, calcium carbonate
Covalent (two non-metals)Prefixes show numbers of atomsN₂O₄, dinitrogen tetroxide

To write a formula from an ionic name, balance the charges so the total is zero: calcium (2+) and chloride (1-) give CaCl₂. Practice both directions, name to formula and formula to name, until it is quick.

States of Matter and Phase Changes

Changing states of matter close the topic list. Particles in solids vibrate in fixed positions, liquids flow while staying close, and gases move freely. During a phase change, added energy breaks attractions between particles rather than raising temperature, which is why a heating curve has flat sections at melting and boiling points.

Intermolecular forces explain differences in boiling points: water boils at a much higher temperature than similar-sized molecules because of hydrogen bonding. Connecting molecular structure to physical properties links this topic to the rest of the course.

Where Students Get Stuck

Study Tips for C672

How We Help with C672

Send the task instructions, lab sheets, your data and any evaluator comments. A chemistry tutor prepares worked solutions, explains concepts, models lab analysis or reviews your lab report for accuracy and clarity.

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Frequently Asked Questions

What does C672 cover?

Electronic structure of atoms, periodic trends, naming compounds, formulas, molecular structure, balancing reactions and states of matter, with laboratory work.

Who takes C672?

WGU describes it as a course for already-licensed teachers seeking an additional license or endorsement in secondary chemistry.

Does C672 include labs?

Yes. Laboratory experiences support the study of matter and lab safety and maintenance procedures.

What comes after C672?

General Chemistry II with Lab (C673) builds on it.

Can you provide lab results?

No. Your data must come from your own experiments; we help you analyze and write them up.

Is GradeEssays affiliated with WGU?

No. We are an independent service with no connection to Western Governors University.