FSN 1500 Week 7. Organic Compounds, the Periodic Table and Related Topics. Organic Compounds. Organic compounds - carbon-containing compounds where carbon forms the structural framework of the molecule Remember: to our knowledge all life on Earth is organic compound based!
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Organic Compounds, the Periodic Table and Related Topics
Lewis Structure Diagram
compounds with the same
chemical formula but different
Note how the different
structures results in
different properties for
note the double covalent bond
Why are the alkenes and alkynes more chemically reactive than the
alkanes? Think about the relative length and strength of the covalent
bonds in these compounds.
Comparison for a Single Covalent Bond
Covalent Bond A
Covalent Bond B
N = atomic nucleus
The longer the bond length the weaker the bond.
The bond length of the single covalent bonds in
Acetylene is longer, and therefore weaker, than the
bond length of the single covalent bonds in Butane
Two benzene rings bonded together = a “biphenyl”
Many older electrical transformers contain
PCBs in the electrical insulating fluids
What is hidden in the terms “partially hydrogenated oil ” and trans-fatty acids?
What is the controversy surrounding trans-fats in the food supply and what recent legal actions illustrate the importance of this topic for the layperson?
pipes (Detroit), old
lead smelters (Detroit)
Source: Geotimes, May 2005
March 10, 2004
BY WENDY WENDLAND-BOWYER AND TINA LAMFREE PRESS STAFF WRITERS
The Michigan Department of Environmental Quality plans to conduct hundreds of tests in two neighborhoods with dangerously high levels of lead in the soil to find out whether it came from former lead smelters.
The two neighborhoods -- one in Hamtramck and the other in Detroit -- are downwind from possible old lead smelters, according to the DEQ report released late Tuesday.
The state tested the soil on publicly-owned property in residential neighborhoods near 10 former smelting sites late last year. Almost all the sites had high levels of lead in the soil. Three sites had high lead levels where the wind would have carried it if it had come from the old smelters, the report said.
The other seven sites either showed high lead levels in no particular pattern or low lead levels.
Source: Geotimes, May 2005
Pay attention to this issue; it’s not commonly discussed in the local or state press.
of a carbon