To my GenChem classes

Here is the link to the 40-item test on formula writing ang naming compounds..

The 40 questions I have posted for this test are of 2 types: Multiple Choice and Identification. The questions will randomly appear as you click the "submit my answer" tab on each page. This means the sequence the questions will follow is unique for each quiz-taker. Make sure you enter correctly spelled answers for questions under the identification type.You are given 30 minutes to finish answering all the questions. Your result will appear once the 40th question is answered. Please print and submit the score report / certificate generated by the site at the end of the test. The quiz will be available in the site until Sunday, March 1 2015, midnight only.

To My BSN 1A and 1B Classes:

Please download your copies of GenChem laboratory experiments for the finals by clicking the following links..

Act 13 - ALCOHOLS, ALDEHYDES AND ESTERS

Act 14 - ALDEHYDES AND KETONES

Act 15 - PROPERTIES OF CARBOXYLIC ACIDS

Act 16 - DETERMINATION OF pH AND BUFFERS

Act 17 - NAMING COMPOUNDS

Act 18 - FORMULA WRITING

Table of Ions

To My BSN 1A and 1B Classes:

Kindly download and print a copy of the Table of Monoatomic and Polyatomic Ions found here. Bring your copy to our next lecture class meeting.

Thank you!

The VSEPR Theory

The VSEPR (Valence Shell Electron Pair Repulsion) Theory is a simple technique used for predicting the shape or geometry of simple covalent molecules. It assumes that each atom in a molecule will achieve a geometry that minimizes the repulsion between electrons in the valence shell of that atom.

The following video clip enumerates the different types of molecular structures. Blue represents the central atom, white represents the atoms bonded to the central atom, and red represents lone electron pairs (pairs of nonbonded electrons in the central atom.)

Thanks to starjester1 for the clip... :)