| Clearly, you don't know what an anion or a radical is.
And your criteria for "most common" chemistry ions/radicals must be different than most everyone else's. Chloride, bromide, oxide...are all very common, and don't show up on this list. Thiocyanate? Really? That's "common"?
You should note that these are polyatomic ions. You should also explain how to answer the questions, because entering (OH) or (OH-) or (OH-1) would make the most sense, rather than entering the written name of the ions.
Finally, ten minutes is a ridiculous amount of time for this, especially since this isn't a very extensive list. |
The Nine Planets 
Digits of Pi 
Multiplication Table
