hi, does anyone know any good websites on practicing reactions of hydrocarbons?

Click on the 7th document from the top. I don't see any answers and I see a number that don't look like hydrocarbons but it's a start.

http://www.google.com/search?q=practice+hydrocarbon+reactions&ie=utf-8&oe=utf-8&aq=t&rls=org.mozilla:en-US:official&client=firefox-a