Assignment five

Create a google doc at docs.dunmorestudents.net. Change the title to "Bonding" and share it with me (bennettj@dunmorestudents.net).

View the site below and answer the questions that follow:

A. http://www.visionlearning.com/library/module_viewer.php?mid=55

1. Read Introduction. What did Lewis observe about atoms and what did he suggest?
2. Read Ionic Bonding. Explain in your own words the nature of an ionic bond.
3. Click on the The reaction of sodium with chlorine. There are three pages. Click on the prompt at the bottom right to go to page 2 and 3.

Explain what you see.

1. Continue reading about ionic bonding. Explain why there is no such thing as a single ionic molecule.
2. Read Covalent Bonding. Click on the covalent bonding between hydrogen atoms and explain what you see.
3. Continue reading Covalent Bonding. Explain why unlike ionic molecules covalent molecules exist.
4. 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.
5. Read Polar and Nonpolar Covalent Bonding. Click on the polar covalent bond simulated in water. Explain what you see.
6. From your notes or internet rescources 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.
7. Read Dipole. Explain the nature of a dipole. Go back to the previous simulation and explain why water is a dipole.
8. Click on the Questions and Quizzes tab at the top of the page and try the quiz.

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B. Click on the link below and summarize what you read. Do you find anything surprising?

. Chemical Bonding: polar covalence