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PRIMARY SOURCES:©2010, Homeschool College USA. All rights reserved.
Basic Chemistry online course - requires registration
Chemistry Upper Secondary - 1 online course - continues from Basic Chemistry
Chemistry Upper Secondary - 2 online course - continues from Upper Secondary - 1
CK-12's Chemistry Textbook
CK-12's Chemistry Textbook - Teacher's Resource Guide
CK-12's Chemistry Workbook
CK-12's Chemistry Lab Demos
Chemistry Virtual Textbook
Chemistry Videos - 26 half-hour videos "to observe chemistry in action."
ADDITIONAL RESOURCES:
Interactive Periodic Table
Key Tables - such as a chart of electron configurations
Chemistry online flashcards
Pink Monkey Chemistry Study Guide
SparkNotes Chemistry study guide
Audio Files - overviews of chemistry concepts, good for review before exams
CLEP Chemistry
TESTING PRACTICE AND FINAL EXAM:
Textbook companion site with self-assessment quizzes for practice.
Periodic Table Quiz - click on the link "Elements" under the "Science" category.
Chemistry sample tests and End-of-Course exam
CLEP Chemistry Exam Outline:
The following is a breakdown of the topics covered by the CLEP test for Chemistry. Keep this outline handy during your studies and make notes for each portion of the exam, for reviewing later
20 % Structure of Matter
Atomic theory and atomic structure
Evidence for the atomic theory Atomic masses; determination by chemical and physical means Atomic number and mass number; isotopes and mass spectroscopy Electron energy levels: atomic spectra, quantum numbers, atomic orbitals Periodic relationships, including, for example, atomic radii, ionization energies, electron affinities, oxidation states
Chemical bonding
Binding forces
- Types: covalent, ionic, metallic, macromolecular (or network), dispersion, hydrogen bonding
- Relationships to structure and to properties
- Polarity of bonds, electronegativities
Geometry of molecules, ions, and coordination complexes: structural isomerism, dipole moments of molecules, relation of properties to structure Molecular models Nuclear chemistry: nuclear equations, half-lives, and radioactivity; chemical applications
- Valence bond theory; hybridization of orbitals, resonance, sigma and pi bonds
- Other models, for example, molecular orbital
19 % States of Matter
Gases
Laws of ideal gases; equations of state for an ideal gas Kinetic-molecular theory Liquids and solids
- Interpretation of ideal gas laws on the basis of this theory
- The mole concept; Avogadro's number
- Dependence of kinetic energy of molecules on temperature: Boltzmann distribution
- Deviations from ideal gas laws
Liquids and solids from the kineticmolecular viewpoint Phase diagrams of one-component systems Changes of state, critical phenomena Crystal structure
Solutions
Types of solutions and factors affecting solubility Methods of expressing concentration Colligative properties; for example, Raoult's law Effect of interionic attraction on colligative properties and solubility
12 % Reaction Types
Formation and cleavage of covalent bonds
Acid-base reactions; concepts of Arrhenius, Brønsted-Lowry, and Lewis; amphoterism Reactions involving coordination complexes
Precipitation reactions
Oxidation-reduction reactions
Oxidation number The role of the electron in oxidation-reduction Electrochemistry; electrolytic cells, standard half-cell potentials, prediction of the direction of redox reactions, effect of concentration changes
10 % Equations and Stoichiometry
Ionic and molecular species present in chemical systems; net-ionic equations Stoichiometry: mass and volume relations with emphasis on the mole concept Balancing of equations, including those for redox reactions
7 % Equilibrium
Concept of dynamic equilibrium, physical and chemical; LeChâtelier's principle; equilibrium constants
Quantitative treatment
Equilibrium constants for gaseous reactions in terms of both molar concentrations and partial pressure (Kc , Kp) Equilibrium constants for reactions in solutions Constants for acids and bases; pK; pH Solubility-product constants and their application to precipitation and the dissolution of slightly soluble compounds Constants for complex ions Common ion effect; buffers
4 % Kinetics
Concept of rate of reaction
Order of reaction and rate constant: their determination from experimental data
Effect of temperature change on rates
Energy of activation; the role of catalysts
The relationship between the rate-determining step and a mechanism
5 % Thermodynamics
State functions
First law: heat of formation; heat of reaction; change in enthalpy, Hess's law; heat capacity; heats of vaporization and fusion
Second law: free energy of formation; free energy of reaction; dependence of change in free energy on enthalpy and entropy changes
Relationship of change in free energy to equilibrium constants and electrode potentials
14 % Descriptive Chemistry
The accumulation of certain specific facts of chemistry is essential to enable students to comprehend the development of principles and concepts, to demonstrate applications of principles, to relate fact to theory and properties to structure, and to develop an understanding of systematic nomenclature that facilitates communication. The following areas are normally included on the examination:
Chemical reactivity and products of chemical reactions Relationships in the periodic table: horizontal, vertical, and diagonal Chemistry of the main groups and transition elements, including typical examples of each Organic chemistry, including such topics as functional groups and isomerism (may be treated as a separate unit or as exemplary material in other areas, such as bonding)
9 % Experimental Chemistry
Some experiments are based on laboratory experiments widely performed in general chemistry and ask about the equipment used, observations made, calculations performed, and interpretation of the results. The questions are designed to provide a measure of understanding of the basic tools of chemistry and their applications to simple chemical systems.
Recommended Course of Study:
Complete the online courses. Download the CK-12 textbook and design a study schedule. Complete the workbook and as many of the lab demos as possible. (Many of them only call for simple, household ingredients.) Go through the virtual textbook and watch the chemistry videos. The additional resources are provided for extra practice and help. Finish the course by taking the sample tests and then the End-of-Course exam.
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