The conclusion of a two-part series looks at Isaac NewtonÕs Year of Miracles through a comic lens, making his Law of Universal Gravitation easily understood for those studying action, reaction, inertia, and force.

Paul Andersen explains how Newton's Third Law applies to all objects. [6:01]

This lesson will define reaction rate as the change in concentration of products (molarity) in a chemical reaction over time.

At the end of this tutorial, the learner will understand and be able to use basic techniques to reduce intensity of their own fight or flight reaction. It is 1 of 3 in the series titled "Quelling the Adrenaline Response."

In this video Paul Andersen explains how the three types of catalyst classes act to speed up reactions. Acid-base catalysts either add or remove a proton from one of the reactants. Surface catalysts provide active sites where reactants...

Paul Andersen explains how catalysts can speed up a reaction without being consumed in the reaction. Catalysts can lower the activation energy of reaction be stabilizing the transition state. They can also create new reaction pathways...

In this video Paul Andersen explains how reaction intermediates are created in elementary steps and may not appear as either a reactant or product. Experimentation is used in Chemistry to identify reaction intermediates. Look at the...

This lesson will explain the general format of a chemical equation including products, reactants, arrow notation, and states of matter. It is 1 of 2 in the series titled "Chemical Equation: Vocabulary."

This lesson will discuss how chemical reactions occur and that not all of them will go through to completion. It is 2 of 2 in the series titled "Chemical Reactions: Summary."

Find out about Newton's Laws of Motion, and the ideas that have developed the foundation of those laws. [11:05]

The effect of electron-withdrawing and electron-donating groups.

The mechanism of the Birch reduction. [7:09]

The relationship between standard Gibbs free energy change and the equilibrium constant K. Calculating K when you know the standard free energy of reaction. [10:45]

See the reaction of an alkyne with a hydrogen halide, leading to formation of a halogenated alkene or alkane. [10:08]

Halogenation is a reaction that occurs when one or more halogens are added to a substance. Halogens comprise the seventh column in the periodic table and include fluorine, chlorine, bromine, iodine, and astatine. The resulting product of...

Learn about Markovnikov's Rule and Carbocations. Figure out which addition reaction is more likely. [9:09]