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How to Pass CH101: the High School Version

  • Pay attention, ask questions, complete your homework

How to pass the college version

  • Do not take it in the summer
  • Read ahead
    • You’ll read more new words than when taking a foreign language
    • There is more material than anyone can memorize: you need to understand
    • Seriously compounding: each new topic builds on previous ones
  • DO NOT GET BEHIND
  • Go back over each days class
    • Reread text book to fix things that were unclear in class
    • It’s up to you to learn the material
    • Correct / amplify notes as needed
  • Join a study group
  • Do online homework “as we go”
    • Assigned homework is minimum set
    • 10-12 hours a week out of class
    • Use the practice problems to test yourself
      • If you can’t work the practice problems with the textbook closed, then you won’t necessarily do well on the test
    • Attempt the problems you can’t immediately see how to work
  • Do much more than the minimum

My Labs Plus

  • This is where you do your homework and pre-labs
  • DO NOT USE THE CODE FOR THE LAB
    • You’ll be given that at your lab time
  • University of Alabama Login URL: http://ua.mylabsplus.com
    • Students Username : MyBama ID (all lower case)
    • Students Password : CWID
    • Click on your course under the Fall 2016 tab
    • Accept Terms of Agreement
    • Input Access code (purchased from the bookstore), purchase Access Code, or choose Pay Later to receive 14 days of temporary access
    • Your access code is good for 24 months

Syllabus overview

  • How fast we cover a section depends on how well we perform to some degree
  • Tests are not commutative in the sense that future tests will not ask the same exact questions
    • However knowledge of the previous test might be required to answer questions on future tests
  • Office hours are Mondays 5-6, Thursdays 4-5
    • Don’t need an appointment

Test Format

  • Some questions will be vocabish “word” questions and have “word answers”
  • Some questions ask you if a situation is reasonable

The textbook

  • The second edition

Labs do not meet this week

Attendance

  • Using your clicker at all gets you half a point
  • Using it correctly or luckily gets you the other half

Tests

  • Need to bring an ID
  • Labs can’t be programmable

There will not be recitation this evening

Chapter 1 - Atoms

Matter from the Particulate Point of View

  • Matter is composed of particles
    • Example: subatomic particles such as neutrons, protons, and electrons, atoms, and molecules
      • “We divide the universe into two types of stuff”
  • How the particles come together dictates the physical properties of matter
    • How do things transform
  • Matter is defined as anything that has mass and occupies space (e.g., has volume)

Elements, Molecules, and Mixtures: The Types of Matter

  • Atoms
    • Basic submicroscopic particles that constitute the fundamental building blocks of ordinary matter
  • Molecules
    • Substances formed when two or more atoms come together (bond) in specific geometric arrangements
  • Atoms and molecules determine how matter behaves
  • Chemistry is a discipline that seeks to understand matter and its properties, and the transformations that matter undergoes- particularly between molecules.

The Classification of Matter

  • Matter can be classified according to
    • its state — its physical form (i.e., solid, liquid, or gas) based on what properties it exhibits;
    • its composition or the types of particles
  • The state of matter changes from solid to liquid to gas with increasing temperature

Solid Matter

  • In solid matter, atoms or molecules pack close to each other in fixed locations.
  • Although the atoms and molecules in a solid vibrate, they do not move around or past each other.
  • Consequently, a solid has a fixed volume and rigid shape.
    • Ice, aluminum, and diamond are good examples of solids.

Liquid Matter

  • In liquid matter, atoms or molecules pack about as closely as they do in solid matter, but they are free to move relative to each other.
  • Liquids have fixed volume but not a fixed shape.
  • Liquids’ ability to flow makes them assume the shape of their container.
    • Water, alcohol, and gasoline are all substances that are liquids at room temperature.

Gaseous Matter

  • In gaseous matter, atoms or molecules have a lot of space between them.
  • They are free to move relative to one another.
  • Fill available space
  • These qualities make gases compressible.

Classification of Matter by Components

  • Matter can be classified according to its composition: elements, compounds, and mixtures.
  • a pure substance is made up of only one component, and its composition is invariant
  • a mixture is a substance composed of two or more components in proportions that can vary from one sample to another

Vocab

Term Definition
matter anything that has mass and occupies space (e.g. has volume)
atoms Basic submicroscopic particles that constitute the fundamental building blocks of ordinary matter
molecules Substances formed when two or more atoms come together (bond) in specific geometric arrangements
chemistry a discipline that seeks to understand matter and its properties, and the transformations that matter undergoes- particularly between molecules
state physical form of matter based on what properties it exhibits (i.e. solid, liquid, or gas. Classifies matter)
composition Classifies matter based on the types of particles in it
solid matter atoms and molecules in this type of matter pack close to each other in fixed locations
liquid matter type of matter in which atoms or molecules are packed closely, but they are free to move relative to each other
gaseous matter matter in which atoms or molecules have a lot of space between them
compressible Material which are like gases are said to be…
pure substance made up of only one component and its composition is invariant
mixture substance composed of two or more components in proportions that can vary from one sample to another