7.2. Why Do Some Molecular Collisions Result in Reaction Whereas Others Do Not?, 213
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Alkanes in Motion Animations of gas-phase hydrocarbon systems show the motion of molecules.
Alkanes / Cycloalkanes |
Molecular Mechanics / Dynamics
Blue Bottle, Red and Blue Bottle Color changes are caused by reactions of oxygen in the air with chemicals in a solution. The colors fade over time, but can be regenerated by shaking the flask containing the solution.
Kinetics |
Mechanisms of Reactions |
Oxidation / Reduction
Induction by Iron(II) of the Oxidation of Iodide by Dichromate Acidic aqueous solutions containing dichromate and iodide ions are mixed with no reaction. The addition of a solution of iron(II) ion induces the rapid formation of brown triiodide ion.
the following mechanism has been proposed at high temperatures: (1) NO2 + CO O-N-O-C-O (slow) (2) O-N-O-C-O NO + CO2 (fast) Check the box for each species that is an intermediate in this mechanism.
Audience-Appropriate Analogies: Collision TheoryKent W. Piepgrass This article presents two new analogies for collision theory based on arcade games and on the interactions between salesclerks and customers in a store. The uses, limitations, and possible extensions of the analogies are discussed. Piepgrass, Kent W. J. Chem. Educ.1998, 75, 724.
Learning Theories |
Mechanisms of Reactions |
Kinetics
Pictorial Analogies XIII: Kinetics and MechanismFortman, John J. Pictorial analogies for first order kinetics, the effect of concentration and temperature on reaction rate, and the requirement for proper molecular orientation for reaction. Fortman, John J. J. Chem. Educ.1994, 71, 848.
Mechanisms of Reactions |
Rate Law |
Reactions
Bean counter's caution Schwartz, Leslie J. The article "The "Bean Lab' is useful only for elementary mechanisms. Schwartz, Leslie J. J. Chem. Educ.1993, 70, 1042.
Mechanisms That Interchange Axial and Equatorial Atoms in Fluxional ProcessesMarion E. Cass, Henry S. Rzepa, King Kuok Hii The Berry pseudorotation is a classical mechanism for interchanging axial and equatorial ligands in molecules with trigonal bipyramidal geometry. Teaching this mechanism presents particular pedagogic problems due to both its dynamic and three dimensional character. The approach taken here illustrates these processes using interactive animations embedded in a Web page and overcomes many limitations of a printed page.
Computational Chemistry |
Molecular Properties / Structure |
Nonmetals |
Enantiomers |
NMR Spectroscopy |
Mechanisms of Reactions |
Molecular Mechanics / Dynamics
Dependence of S on Molecular StructureEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
Molecular Mechanics / Dynamics
Some Trends In Entropy ValuesEd Vitz, John W. Moore A section of ChemPrime, the Chemical Educations Digital Library's free General Chemistry textbook.
NO + CO2 
