Name _________________
Per. ____A ____B
Assignment # 3: A Lesson in Chemistry Using Our Online Textbook
The first unit we will begin with during the first week of school is the Properties of Water. If you
have not had chemistry (the majority of you have not), now is a great time to get a handle on the basics.
Complete the following assignment and turn it in on the first day of school. Note: if you have any trouble
utilizing the Online textbook from your home computer, try using “Tech Support” found in the toolbar at
the upper right hand side of the textbook site. If you are having trouble, you might also use the following
suggestions: For Windows users, Internet Explorer is preferred over Netscape Navigator. America Online users
should use IE as their browser window (connect to the Internet with AOL, then minimize the AOL browser window
and open Internet Explorer or Netscape). Disable any pop-up blockers for this site only.
Please let me know ASAP via email if none of the recommendations above work. My email address is
tiderman.erin@westada.org. It is important to get software issues resolved before school begins, since the
bulk of your homework will come from this textbook. Follow the steps below to complete Assignment #3:
1. Follow the instructions posted on our class website: www.westada.org/rmhs located under “Staff”
and “Tiderman, Erin”. Click on “Assignments” and then “Summer Assignment #3”. The
instructions will lead you step-by-step regarding how to register to use the Online textbook.
2. Click on “Concept 2.1”. Read the chapter and define the following:
Matter:
Element:
Compound:
Trace Elements:
3. Next, Complete “Concept Check 2.1” – shown in a yellow box on p.32..
1.
2.
4. Next, read Concept 2.2 from the beginning thru “Isotopes”. You don’t need to worry about the rest
of the chapter. Define the following:
Atom:
Protons:
Neutrons:
Electrons:
Atomic Nucleus:
Atomic Number:
Mass Number:
Atomic Mass:
Isotopes:
5. Next, go back to the Chapter 2 Main Page. Click on “Activity: Build an Atom”. Build the
following atoms. Draw a picture of each atom and indicate the number of protons, number of
shells, and number of outer shell (valence) electrons.
#Protons:
#Shells:
#Valence Electrons:
(Outer Shell Electrons)
Hydrogen
Oxygen
Carbon
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6. Next, Click on “Activity: Covalent Bonds”. Complete the following:
1. Define Molecule:
2. Define Covalent Bond:
Nitrogen
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3. What is the difference between atomic oxygen (O) and molecular oxygen (O2)?
7. Next, click on “Activity: Nonpolar and Polar Molecules”.
1. Define Electronegativity:
2. What is the difference between a nonpolar and polar covalent bond? Give an example for
each.
8. Next, click on “Activity: Ionic Bonds”.
1. What is an ionic bond?
2. Explain specifically what happens to sodium and chlorine when they form an ionic bond.
3. Why are sodium and chorine attracted to each other?
4. Why does sodium take on a positive charge and chlorine a negative charge?
5. What is an ion?
6. What is the difference between a molecule and a compound?
9. Next, click on “Activity: Hydrogen Bonds”.
1. Where does one water molecule stick to another water molecule?
2. Define hydrogen bond: