Ms. Ndrecka/Chemistry
In Class Project
Chemistry
Chemical Bonding – INTERNET RESEARCH ASSIGNMENT
View the sites below and answer the questions that follow
A. http://www.visionlearning.com/library/science/chemistry-1/CHE1.7-bonding.htm
1. Read Introduction. What did Lewis observe about atoms and what did he suggest?
(15 points)
2. Read Ionic Bonding. Explain in your own words the nature of an ionic bond. (15
points)
3. Click on the Simulation of the reaction of NaCl. There are three pages. Click on
the prompt at the bottom right to go to page 2 and 3.
Explain what you see. (15 points)
4. Continue reading about ionic bonding. Explain why there is no such thing as a single
ionic molecule. (10 points)
5. Read Covalent Bonding. Click on the covalent bonding simulation and explain
what you see. (15 points)
6. Continue reading Covalent Bonding. Explain why unlike ionic molecules covalent
molecules exist. (10 points)
7. Read Multiple Bonds And Lewis Dot Structures. From your notes or text what other
type of multiple covalent bond exists? Draw the Lewis dot structure of three
molecular compounds- One with single bond(s), one with double bond(s) and one
with triple bond(s). Make statements about bond length and bond strength related
to the number of bonds between atoms. (20 points)
8. Read Polar and Nonpolar Covalent Bonding. Click on the simulation of the water
molecule. Explain what you see. (10 points)
9. From your notes or Internet resources explain electronegativity of atoms and how
polar covalent bonds are formed. Draw and example of a molecule with nonpolar
covalent bond(s) and one with polar covalent bond(s) indicating
electronegativities of each atom, differences in electronegativities and partial
charges if present. (20 points)
10. Read Dipole. Explain the nature of a dipole. Go back to the previous simulation
and explain why water is a dipole. (10 points)
11. What does polarity has to do with bond polarity? (10 points)
12. List three differences between ionic and covalent compounds? (10 points)
13. Identify each molecule as ionic (I) or covalent (C). (10 points)
a. H2O ____________________
e. MgCl2 _________________________
b. LiF _____________________
f. NaCl ____________________________
c. CaCl2 ____________________
g. H2SO4 __________________________
d. CH4 ____________________
h. AlCl3 ___________________________
14. How can you name Ionic compounds? –Rules (10 points)
use the website: http://www.ausetute.com.au/namiform.html
or the textbook pg. 176-…
15. Complete the worksheet – Naming Ionic Compounds (25 points)
B. Optional
. Chemical Bonding:
http://www.chem1.com/acad/webtut/bonding/polcov.html
This site has some interesting information to stretch your mind about bonding.
Note: Do not copy and paste from the Internet, interpret everything
in your own words. Write everything in Word Document. Name
the file, FirstNameLastNameChemicalBondingProject.doc and
submit it in my email address: endrecka@philasd.org