AP CHEMISTRY

 

Element of the week

April 2, 2007

Last Week Answer

1.  A student discovered this element in the 1800s.

2.  A major use of this element is to make a gasoline additive that prevents lead from depositing in the engine. 

 Unfortunately, this compound is now considered to be a carcinogen.

3.  Another organic compound made with this element is used as a pesticide.  It is especially effective against

the parasitic worm known as nematodes.

4.  Its sodium salt has been used as a sedative.  Much of the element is mined from the ocean,

although the deep brine wells of Arkansas are a major US source.

5.  This halogen is the only liquid and has a density greater than 3 times that of water; two other major uses

 of this element are in the manufacture of photographic film and in the disinfection of spas or pools.

THE ANSWER IS

BROMINE !!!

Click for Oxidation Number Rules

For your Lab click here chemical_reaction_md_wht.gif (9274 bytes)

Click here works.gif (767 bytes) to get your work Sheets.

Go here book.gif (1868 bytes) for your references.

c_links.gif (2815 bytes)

You don't need to go back to the main page for that High School Chemistry link it's here. research.gif (1987 bytes)

 

Get more help here  pg9_14.gif (15162 bytes) Rosen's Chemistry Resources. pointer2.gif (920 bytes)

 

 

To return to the main page click HERE.



 

1