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Lowell Chemistry

Test Study Guide: Chapters 3, 4, 7, and 8

Chapters 3, 4 (except 4.5), 7, and 8 (only 8.1, 8.6-8.7) on Tuesday, October 13, 2009

[Note: Calculators are not allowed. You will be provided with a copy of the periodic table and important ions.]

KNOW THE FOLLOWING CONCEPTS:

o      different models of the atomic leading up to the current quantum model

o      Dalton’s atomic theory

o      compare and contrast between elements, atoms, molecules, compounds, and ions

o      types of subatomic particles and their relative masses and locations in an atom

o      relationship between the nucleus and the mass and size of an atom

o      difference between a covalent bond and an ionic bond

o      how to interpret the periodic table

o      the difference between groups and periods on the periodic table

o      characteristics of elements based on the periodic table

o      ion charges based on the periodic table

o      identify the different types of electrolytes (strong, weak, and non)

o      identify metals, metalloids, and nonmetals based on the periodic table

o      identify Groups 1A, 2A, 7A, and 8A based on group name

o      diatomic elements

o      the types of chemical reactions, e.g. decomposition, synthesis, etc.

o      predicting the products of a chemical reaction

o      law of conservation of mass

o      valence electrons and their significance

o      Lewis electron dot structures

BE ABLE TO ANSWER PROBLEMS INVOLVING:

o      identifying the numbers of protons, neutrons, and electrons based on atomic number, atomic mass, and charge

o      write chemical equations how ions (either cations or anions) are made

o      how to write chemical formulas of compounds (both ionic and covalent)

o      how to write and balance chemical reactions of any of the 5 main types (combustion, synthesis, decomposition, single-replacement, and double-replacement)

o      density

o      Lewis electron dot structures of elements and compounds

o      any variation of the above types of problems may show up on the quiz

If you have any questions, please feel free to e-mail me or stop by our classroom.

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