Chapter 3
Classification of Matter
- Section 3.1 - Matter Defined.
- The definition of matter is ridiculously simple
because it's such a basic complex, but you ought to know it.
Remember that you can't always see it or feel it.
- Section 3.2 - Physical States of Matter.
- Solid (crystalline or amorphous), liquid, or gas.
- Are their volumes definite or indefinite?
- Are there shapes definite or indefinite. Just think
about it.
- Think about the relative attractive forces between the
particles.
- How easily are they compressed?
- How fast are the particles moving?
- Section 3.3 - Substances and Mixtures.
- Be able to draw Figure 3.2 and explain each box.
- Section 3.4 - Elements.
- An atom is the smallest particle of an element that can exist.
- Section 3.5 - Distribution of Elements.
- What is the most common element in our galaxy? the earth?
the human body?
- Section 3.6 - Names of the Elements
- Know the names and symbols of the first 36 elements.
- Section 3.7 - Symbols of the Elements.
- What's the difference between CO and Co? Ca and CA?
- Section 3.8 - Metals, Nonmetals, and
Metalloids.
- Know the properties of each, and where they show up on the
periodic table.
- Section 3.9 - Compounds
- A molecule is the smallest particle of a compound that can
exist. Know what an ion is, and the difference between an
anion and a cation. Which elements typically form anions?
cations? What are covalent/ionic compounds?
- Section 3.10 - Elements that Exist
as Diatomic Molecules.
- Know these.
- Section 3.11 - Chemical Formulas.
- Know how to interpret these. Don't be fooled by the
parentheses.
- Section 3.12 - Mixtures.
- Compare mixtures against compounds. What's the difference?
Return to the
CHEM 151 Syllabus.
Return to the Schedule.
Return to the study guide for
Chapter 2.
Go to the study guide for
Chapter 4.
Return to the
Chem 151 main home page.
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