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The following files address a variety of introductory chemistry topics as indicated by title and description. Permission is granted for classroom use only. Please feel free to email any comments.
Last updated: May 2009.
Many of the powerpoints have sequences that require a rapid slide to slide transition to create an animation effect, analogous to a flip book. This can be achieved by holding down the down arrow on your keyboard.
Many of the powerpoints are not self-contained-- they require instructor narration.
Powerpoint Presentations: After the presentation downloads, right click and go to full screen, otherwise the slide transitions will be too slow. If you do not have PowerPoint installed on your computer, you can download and install a viewer from here. You can also download individual files: right click and save target as.
Electrons in Atoms
Orbitals Basic concepts for atomic orbitals
Wavelength vs Frequency Shows the inverse relationship of l and n. This requires holding down the down arrow on your keyboard for a rapid slide to slide transition for the whole presentation.
Periodic Table
Periodic Trends and Reading Trend Graphs What periodic patterns can be seen with specific atomic properties, and how are they related to trend graphs
Bonding
Covalent Bonding Includes brief review of ionic bonding, shows covalent bonding via dot structures, and a bunch of cool examples of covalent molecules.
Dot (Lewis) Structures Primer on creating valid dot structures.
Polar Bonds and Polar Molecules What is a polar bond and how does it relate to a polar molecule
Metallic and Ionic Bonding and Properties Intro to metallic bonding and properties, brief comparison with ionic crystals (large file- may take a bit longer to load)
Molecule versus ionic compound-- Structural Differences illustrates difference between molecule as a single bonded unit and ionic compound as a crystal, connects to molecular formula versus formula unit
Polyatomic Ions -- anatomy of Why does a group of covalently bonded atoms carry a charge?
Polyatomic Ions in balancing charges in ionic compounds Illustrates how to determine balanced charges for an ionic compound that contains a polyatomic ion.
Surface Tension How do intermolecular attractions in a liquid result in surface tension
Moles & Chemical Reactions
Introduction to Conversions What are conversion factors and how are they used
Mole Conversions Example conversions using a mole map
Limiting Reagents conceptual illustration of limiting reagents
Precipitation and Net Ionic Equations What occurs between ions in solution and how is the net ionic equation determined
Reaction of Hydrogen and Oxygen (annotated) What happens at the particle level during a chemical reaction
Redox (Single Replacement example) -- anatomy of A 'single replacement' reaction shown at the particle level is used as an example for understanding electron transfer and terminology in a redox reaction.
A tribute to Michael Offutt's Mole Song this presentation makes sense only if simultaneously listening to the highly recommended song "A Mole is an Unit" by Michael Offutt, which can be obtained through a variety of web sites. All appropriate disclaimers are hereby disclaimed, implied, and otherwise manifest and reified. Large file-- takes a bit longer.
Thermochemistry
Kinetic Energy Distribution in a Liquid; Evaporation and Sweat Evaporative cooling at the particle level
Heating curves and enthalpy change shows how to calculate delta H for substances undergoing change in temperature that include phase changes
Heat Flow how is heat transferred from an object of high temperature to an object of low temperature
Equilibria
Equilibrium in a chemical reaction (basics)What does equilibrium look like metaphorically, conceptually, and graphically
Biochemistry
Enzyme Catalysis Simple illustration of a catabolic catalysis
Enzyme Specificity Why do some enzymes have higher specificity than others
Introductory material
Rutherford's Gold Foil Experiment Shows the set up of Rutherford's (et al.) discovery
Volume and volume measurement Clarification of the meaning of volume and also looks at graduated cylinders
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