Today in class we discussed 3 types of bonds: covalent, ionic, hydrogen bonding. The purpose of bonding is to create stability. Covalent bonding (polar is partial sharing and non polar in sharing of equal electrons). These bonds are strong and the more bonds the better. Hydrogen bonding is weak bond and example of that is water. The bonds are easily broken however Hydrogen bonding gives water a very unique property (partially negative toward Oxygen and partially positive towards Hydrogen). Ionic is when atoms actually lose electrons (sort of) forming a positive ion (atom) and negative ion (atom).
Secondly we discussed the properties of water: Such as density, specific heat, vaportization, good solvent, cohesion and adhension. Todays lab which we will be continuing on Wednesday will incorporate us solving for density of different liquids.
Monday, August 29, 2011
Sunday, August 28, 2011
Biology Article for your review 25 Aug 2011
Understanding Free Radicals and Antioxidants
Respond to the following article: http://www.healthchecksystems.com/antioxid.htm
what am i looking for: Intro: what are free radicals and how are they formed, what is an antioxidant
secondly what are some effects of free radicals on the body. Furthermore what is the purpose of an antioxidant and how do they attact free radicals. Why is this article relevant to what we are studying at this moment: elements and compounds and why is your health important.
I will be looking for responses to this article to be detailed and specific. Use the article as a reference but fill free to look for other relevant sources of documentation. If you choose to use other documentation please site where the information comes from (If you plagerize and do not give credit you will receive a zero). I have my ways of checking. This is a Summative Grade which will count. Make it a good one.
what am i looking for: Intro: what are free radicals and how are they formed, what is an antioxidant
secondly what are some effects of free radicals on the body. Furthermore what is the purpose of an antioxidant and how do they attact free radicals. Why is this article relevant to what we are studying at this moment: elements and compounds and why is your health important.
I will be looking for responses to this article to be detailed and specific. Use the article as a reference but fill free to look for other relevant sources of documentation. If you choose to use other documentation please site where the information comes from (If you plagerize and do not give credit you will receive a zero). I have my ways of checking. This is a Summative Grade which will count. Make it a good one.
Friday, August 19, 2011
Assignment 8/19/2011 Lab Safety Cartoon
The assignment for was to create a cartoon about lab safety highlighting one lab safety requirement. We also took a quiz over Lab Safety so ask about the Quiz when you return. Next week we will be beginning our unit on chemistry and biochem. Make sure you are present.
Tuesday, August 16, 2011
17 Aug 2011 Assignment
http://www.cbsnews.com/stories/2011/04/13/national/main20053542.shtml
Write an reaction paper to this article. The response should consist of the following: The purpose or main idea of paper, how could this be avoided, what was the author trying to say, why is safety in lab important, and finally an conclusion
Write an reaction paper to this article. The response should consist of the following: The purpose or main idea of paper, how could this be avoided, what was the author trying to say, why is safety in lab important, and finally an conclusion
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