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CHEM& 140 General Chem Prep w/Lab • 6 Cr.




Preparatory chemistry for science and engineering majors intending to take the general chemistry series (161/162 /163). Topics include: atomic structure, stoichiometry, solutions, bonding, acids-bases, and oxidation-reduction. A quantitative approach and problem solving is emphasized. Prerequisite: Math 099 (with C or better) or placement into Math 141 or higher.


After completing this class, students should be able to:

Chemical Terms and Measurements
  • Define chemistry and identify its major subfields.
  • List and describe the key elements of the scientific method.
  • Recognize and use prefixes in metric measurements.
  • Identify the proper number of significant digits in a laboratory setting.
  • Show knowledge of alternate methods for problem solving; such as dimensional analysis, ratios and proportions, and algebraic equations.
Chemical Elements and the Periodic Table
  • Describe the general structure of the atom.
  • Define atomic number and isotope; identify the number of electrons, protons, and neutrons in a specific atom.
  • Extract information about an element from the periodic table: for example; the symbol, atomic number, atomic weight, and the number of protons and electrons.
  • Describe the characteristics of a solid, a liquid, and a gas in terms of visible properties and the kinetic-molecular theory of matter.
  • Describe the difference between chemical and physical properties/changes.
Introduction to Chemical Calculations and the Chemical Equation
  • Explain the concept of the mole.
  • Compute molar masses of elements and compounds; use those molar masses in calculations involving masses and moles of chemical substances.
  • Balance chemical equations.
  • Interpret the information conveyed by a balanced chemical equation.
Atomic Structure and the Periodic Table
  • Explain the historical development of the atomic theory.
  • Explain the role of quantized energy in chemistry.
  • Describe electromagnetic radiation in terms of frequency, wavelength, and speed.
  • Identify the relationship between the electronic structure of an element and its position in the periodic table.
Chemical Bonds and Nomenclature
  • Identify the number and location of valence electrons for main group elements.
  • Describe the differences between molecular, ionic, and metallic substances.
  • Write Lewis structures for atoms, ions, and molecules.
  • Predict the geometry of molecules using VSEPR Theory.
Chemical Stiochiometry and Reaction Rates
  • Write chemical equations, including net-ionic equations, for reactions in aqueous solution.
  • Solve stoichiometric problems given a chemical equation.
  • Explain the concept of a limiting reactant.
Water and Solutions
  • Describe how hydrogen bonding affects the properties of water.
  • Prepare solutions using concentration units of percent and molarity.
  • Identify common acids and bases, both strong and weak.
  • Explain that a buffer solution resists changes in pH.



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Contact info

Bellevue College
3000 Landerholm Circle SE Bellevue, WA 98007-6484 U.S.A.
Work: (425) 564-1000