<p>Oh i found some links. Anyone who is going to take this go to these links.
<a href="http://dbhs.wvusd.k12.ca.us/webdocs/NChO/NChO-Menu.html%5B/url%5D">http://dbhs.wvusd.k12.ca.us/webdocs/NChO/NChO-Menu.html</a>
<a href="http://www.chemistry.org/portal/a/c/s/1/acsdisplay.html?DOC=education%5Cstudent%5Cco02.html%5B/url%5D">http://www.chemistry.org/portal/a/c/s/1/acsdisplay.html?DOC=education\student\co02.html</a>
Good luck to you all taking this. :)</p>