When you have traffic with no traffic policeman, you have gridlock.  An education should provide the traffic as well as a way to guide it.  A multiple-choice test lists choices A-B-C-D-E.  But there's sometimes another category - "OTHER".  Civilization consists, in part of being able to respond, "OTHER".  You have to know about the range of choices, available to you; you have to know the limitation of those choices; and you have to be able to reject all, and seek a new solution.
​(Dr. Vartan Gregorian)

WCSU CHEM 100

Concepts : About the Class

Periodic Table of the Elements

Unit 1 1 Intro to Chemistry

Unit 1 2   Measurement and Sig Figs

Unit 1 3  Math Skills Review

Unit 2 Basic Atomic (Isotopic) Notation/Structure

Unit 3 Matter and Energy (The Basics)
   
                              Sorry folks, the link on page 103,  showing an animation for the various modes of energy
                               in a molecule has now gone "dead" ....  For a rather extensive discussion of the motion(s)  of
                               molecules check out:        https://www.youtube.com/watch?v=hx0tSiCQWDc         

                              Watch the    video from 6 minutes to 8 minutes to help visualize what is meant by translational,
                              vibrational    and rotational energy.  Recall that these three modes are expressions of the 
                               kinetic energy  possessed by molecules.   The entire video is pretty good, and we will come 
                               back to it, when we want to visualize issues, such as melting and solidification.

Unit 3 2   Chemical Reactions  vs. Physical Changes

Unit 3 3 Mixtures 

Unit 3 4 The Elements



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