Collection of Chemistry Problem Sets. Topics include the atom, formulas and equations, physical properties of matter, periodic table, chemical bonding, properties of solutions, kinetics and equilibrium, acids, bases and salts, and oxidation and reduction.

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In this problem set, you will learn about the solvent properties of water, pH, pKa and buffering capacity. This resource is part of the Biology Links for One Laptop Per Child course which contains units on Exploring Life; The Cell; Genetics; Mechanisms of Evolution; The Evolutionary History of Biological Diversity; Plant Form and Function; Animal Form and Function; Ecology; and Astrobiology.
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Water - Practice Problems

by Massachusetts Institute of Technology MIT OpenCourseware

Teachers and students can use these practice problems and solutions to help reinforce what's been covered. This resource is part of the MIT OpenCourseWare - AP Biology - Chemistry of Life collection. Prof. Eric Lander, Prof. Robert Weinberg, Dr. Claudette Gardel, 7.012 Introduction to Biology, Fall 2004. (Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed October 1, 2008). License: Creative Commons BY-NC-SA Prof. Tyler Jacks, Prof. Hazel Sive, 7.013 Introductory Biology, Spring 2006. (Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed October 1, 2008). License: Creative Commons BY-NC-SA Prof. Penny Chisholm, Prof. Graham Walker, Dr. Julia Khodor, Dr. Michelle Mischke, 7.014 Introductory Biology, Spring 2005. (Massachusetts Institute of Technology: MIT OpenCourseWare), http://ocw.mit.edu (Accessed October 1, 2008). License: Creative Commons BY-NC-SA http://ocw.mit.edu/OcwWeb/web/terms/terms/index.htm#cc http://creativecommons.org/licenses/by-nc-sa/3.0/us/legalcode
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Conversion Problems

by Sandy Kliewer

Many practice problems dealing with conversions between grams, moles, and atoms. It is designed to be used in a high school chemistry class.
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VSEPR Worksheet

by Sandy Kliewer

A worksheet I developed to have students use the VSEPR theory to predict the molecular geometry of molecules
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This is a worksheet I developed to give student practice drawing Lewis structures.
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A worksheet I developed so students are able to practice drawing Lewis structures for polyatomic ions.
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ChemThink

by Sophie Teacher

ChemThink - This easy to use site consists of a series of interactive quiz-based tutorials. There are also some laboratory simulatons. Requires free? user registration. Topics: The Atom, Ionic Bonding, Covalent Bonding, Molecular Shapes, Gases, and Chemical Reactions.
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Grams Moles & Atoms conversion practice
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Atomic Math - Calculating Atomic Mass - Problem Set in PPT format for whole class presentation.
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Polar Water Molecule

by Janet Pinto

• In the water molecule, the oxygen and hydrogen atoms share electrons in covalent bonds. • There are a total of 10 protons and 10 electrons so the water molecule is neutral. • The electron cloud model shows that electrons are not shared equally in the water molecule. • Electrons are a bit more attracted to the oxygen atom than they are to the hydrogen atoms. • This makes the water molecule slightly negative at the oxygen end and slightly positive at the hydrogen end.
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