Chem1 Concept Builder: what it covers

The Concept Builder lessons are organized into sets according to the topics set out below. The individual lessons are mostly quite short and can be accessed in any order through a series of hierarchical menus. A brief overview of the contents is given below. To see more details on a lesson set, just click on the "show more details" link. For a complete description of each lesson in excruciating detail, download and view the Chem1 Lessons Guide (a PDF document.)


Square-1: the fundamentals

Begin at the very beginning: 36 lessons covering these major topics:

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Atomic structure and the periodic table

Thirty-one lessons covering everything you need to know (and may be afraid to ask!) about

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Moles, formulas and equations

The "basic stuff" of Chemistry; this set of twenty-four lessons represents our best effort to present it in as interesting a way as possible, without reducing it to a plug-in-the-numbers algorithmic approach.

The mole concept, formulas and moles, how formulas are determined, chemical reaction equations and calculations based on them (including limiting-reactant calculations), volume relations in gas-phase reactions, molar solution calculations.

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States of Matter: liquids, solutions, solids

Forty-seven lessons might seem like a lot, but an understanding of bulk matter is essential preparation for fields as diverse as biology or engineering— and nobody will force you to go through all of them!

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Chemical Equilibrium

The nine lessons in this group begin at the very elementary level, clearing up the confusion about reversible and incomplete reactions that most textbooks gloss over, and introducing the Law of Mass Action. There are sections on the Le Châtelier Principle and on how to write equilibrium expressions. Finally, there is a series of guided exercises on the various kinds of equilibrium calculations.

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Properties of Gases

In addition to the usual stuff on the ideal gas laws and kinetic-molecular theory, these eleven lessons cover gas mixtures and partial pressures, atmospheric pressure and the barometer. For those taking more complete courses, there are two optional lessons on molecular velocities and temperature, and on real gases in which intermolecular interactions play a role.

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Chemical bonding

All about what holds atoms together in twenty lessons divided into four groups:

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A dozen lessons divided into two major groups:

Chemical energetics

An introduction to thermodynamics in thirteen lessons covering heat and work, the First Law of Thermodynamics, enthalpy, Hess' Law, bond enthalpies, calorimetry.

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Acid-base chemistry

Two very comprehensive sets of lessons here:

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