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  • 1. General Chemistry 1CHEM 1211 – Section 5
    Dr. Mark B. Mitchell
    Email: mmitch52@kennesaw.edu
  • 2. Important Stuff
    • Look at Vista site regularly
    • 3. Get the textbook and read it (Chemistry: Principles and Practice, 3rd ed. – Reger, Goode, and Ball)
    • 4. Go to Peer Led Sessions
    • 5. Come to Class
    • 6. DO THE PROBLEMS
  • Student Resources
    • Textbook web site:
    http://www.cengage.com/chemistry/reger
    • Tutoring Center – 4th Floor of Sturgis Library
    • 7. Instructor – me
    • 8. Peer Leader
    • 9. Other Students
    • 10. Online Resources: e.g. www.KhanAcademy.org
  • Structure of Course
    Mon and Wed Class
    Friday Peer Led Session
    Peer Led sessions
    • Class may be in Science 212 or 213
    • 11. Bring textbook, calculator and something to write with
    • 12. Note: attendance to the sessions is a mandatory part of your grade
    Lecture on Content
    • Class in Science 212
    • 13. Exams will be on M/W (see syllabus for dates)
  • Friday’s Class May Be in a Different Room!
  • 14. SYLLABUS
  • 15. CHEMISTRY
    The Study of the Nature of Matter and Change
    Matter – anything that has mass and takes up volume
    Examples of non-matter things?
    Change refers to a change in properties – characteristics - of a substance.
  • 16. Physical Properties
    • Properties of a substance that depend on the nature of the substance itself.
    • 17. Color
    • 18. Melting point
    • 19. Electrical conductivity
    • 20. Density
    • 21. Physical Change occurs when a substance changes its physical form: solid -> liquid.
  • Chemical Properties
    • Properties that a substance shows as it reacts with another substance – acidic, basic, oxidant, etc.
    • 22. A chemical change, a chemical reaction, converts one substance into one or more other substances.
  • Extensive and Intensive Properties
    Extensive Properties – depend on the amount of a substance
    Mass
    Volume
    Intensive Properties – independent of the amount
    Color
    Melting Point
    Density
  • 23. Classifications of Matter
    Substance – Chemically the same throughout
    Element – Cannot be broken down into simpler substances by chemical means
    Compound – Chemical combination of two or more elements. All portions contain the same elements in the same proportions
    Mixtures – Can be separated into two or more substances by physical means
    Heterogeneous mixture – non-uniform mixture
    Homogeneous mixture – uniform mixture
  • 24. Three States of Matter
    Solid – has a fixed shape
    Liquid – takes on the shape of the container, but fills the container only to the volume of the liquid; a liquid/gas interface will be formed.
    Gas – takes on the shape of the container, and fills the container completely.
  • 25.
  • 26. Energy
    • An understanding of energy is critical to the understanding of chemistry
    • 27. Two kinds of energy
    • 28. Kinetic energy – the energy of motion – ½ mv2
    • 29. Potential energy - energy that depends on position
    • 30. All systems want to get to a “place” of lower energy or greater stability - the lower energy state
  • Energy (2)
    • In chemical changes:
    ENERGY IS CONSERVED
    • Energy is neither created or destroyed as a result of a chemical or physical change.
  • Questions and Exercises
    1.8, 1.10, 1.11, 1.16, 1.27, 1.28, 1.30, 1.40