She Blinded Me With Science






         I should have worn goggles.

December 1, 2008

Study Guide for Test 4: Electrons

Filed under: Chemistry — Ms. L @ 5:50 pm



Energy and Color
Topic: Energy and Color
What you need to be able to do: Use the equation E=hv to solve for both frequency and energy.
Use the equation c=(lambda)v to solve for both wavelength and frequency.
Find the wavelength of a photon if given only its energy. (Take it through both equations.)
Determine the transition based on the wavelength. Page 8 of your CRT is helpful on this topic.
Convert a wavelength from nm to m and back. 1 nm = 10-9m.
Have memorized the numbers for c and h.
Resources from Class: Notes: Energy and Color
Interpreting Graphics Chapter 5
Lab: Which Ion Causes the Color (Zap Them)
Additional Practice: DocStock Notes (from College)
A lovely (and even not horrible) online tutorial.
Best I can do for a crossword puzzle. Anyone want to create an online game for this topic that is relevant to our class?
Strongly suggested: Rework the Interpreting Graphics

Lewis Structures
Topic: Lewis Structure
What you need to be able to do: Recognize that Lewis Structures are only used to represent covalent molecules.
Draw the correct Lewis Structure if given the molecular formula.
Identify the correct Lewis Structure from choices, if given the molecular formula.
Draw the Lewis Structure of a charged molecule.
Identify the correct Lewis Structure from choices, if given a charged molecular formula.
Answer questions about a molecule’s Lewis Structure, even if you aren’t specifically instructed to draw one.
Resources from Class: Notes: Lewis Structures
Lewis Structures Practice
Polarity Practice Worksheet (Second Part)
Additional Practice: Tutorial: Drawing Lewis Structures
University of Waterloo: Lewis Dot Structures
St. Olaf College: Lewis Chemistry Help
Dr. Gutow’s Lewis Structures Tutorial

Bond Polarity
Topic: Bond Polarity
What you need to be able to do: Identify whether the bonds in a molecule will be nonpolar covalent, polar covalent, or ionic, if given the electronegativities.
Be able to correctly assign delta + and delta – where needed.
Resources from Class: Notes: Polarity
Polarity Practice Worksheet (First Part)
Additional Practice: Polar Molecule Metaphor Picture

Topic: Naming Covalent Molecules
What you need to be able to do: Determine whether a formula is covalent or ionic (using electronegativities). If covalent …
Using appropriate prefixes, name the formula according to covalent naming conventions.
Resources from Class: Notes: Naming Molecules
Additional Practice: Perdue’s Rules for Naming
Matching Game: Covalent and Ionic Naming
A Different Slideshow
Test Your Compound Naming Skills
Binary Covalent Nomenclature


Topic: VSEPR
What you need to be able to do: Predict the 3D geometry (aka shape) of a molecule if given its formula.
Predict the 3D geometry of a molecule if given its name.
Predict the 3D geometry of a molecule if given its Lewis Structure.
Resources from Class: VSEPR Organization Chart
Notes: VSEPR
Additional Practice: VSEPR Tutorial
Polarity Practice Worksheet (Third Part)
Solution Set for VSEPR with AXE Codes
Dr. Gutow’s VSEPR Tutorial
Chemmybear: The Shapes of Molecules

Topic: Three Intermolecular Forces: Dispersion, Dipole, and H-bonding
What you need to be able to do:
Resources from Class: Notes at Your Own Pace: Intermolecular Forces
Additional Practice:

Topic: Writing Ionic Formulas
What you need to be able to do: Know how to use the swap-n-drop method to write ionic formulas if given only the name of the cation and the name of the anion.
Know the charges associated with the columns of the periodic table.
Resources from Class: Notes: Ionic Bonding
Notes: Ionic Formula Writing
Notes: Polyatomic Formula Writing
Problem Set: Ions in Chemical Compounds
Additional Practice:

Topic: Naming Ionic Compounds
What you need to be able to do: Determine the name of an ionic compound if given its formula.
Resources from Class: Notes: Ionic Naming
Additional Practice: Matching Game: Covalent and Ionic Naming
McGraw Hill Tutorial
Ion Nomenclature
Naming Compounds and Polyatomic Ions
Cation Names and Formulas

Topic: Ionic vs Covalent
What you need to be able to do: Be able to determine if a written name is for an ionic or covalent compound from hints in the name.
Be able to determine if a formula is ionic or covalent by using electronegativities.
Resources from Class: Notes: Polarity
Additional Practice: Classifying Compounds Quiz

And don’t forget to use those Friday Quizzes to help you figure out what you do already know and what could use some more work.

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