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
Unit 4 Dimensional Analysis
Unit 5 1 Quantum Mechanics
Unit 5 2 Periodic Trends
Unit 6 1 Mole Theory / Balancing by Inspection / Percent Comp
Unit 6 2 Mole Theory: Stoichiometry / Molarity / Empirical Formula / Ideal Gas Law
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
Unit 4 Dimensional Analysis
Unit 5 1 Quantum Mechanics
Unit 5 2 Periodic Trends
Unit 6 1 Mole Theory / Balancing by Inspection / Percent Comp
Unit 6 2 Mole Theory: Stoichiometry / Molarity / Empirical Formula / Ideal Gas Law