Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Polyatomic Formulas


CH3COO - Acetate
C2H3O2 - Acetate
NH4 + Ammonium
AsO4 3- Arsenate
C6H5COO - benzoate
HCO3 - bicarbonate
BrO3 - bromate
CO3 2- carbonate
ClO3 - chlorate
ClO2 - chlorite
CrO4 2- chromate
C6H5O7 3- citrate
CN - cyanide
Cr2O7 2- dichromate
H2PO4 - dihydrogen phosphate
HPO4 2- hydrogen phosphate
OH - hydroxide
ClO - hypochlorite
IO3 - iodate
NO3 - nitrate
NO2 - nitrite
C2O4 2- oxalate
ClO4 - perchlorate
IO4 - periodate
MnO4 - permanganate
O2 2- peroxide
PO3 3- Phosphite
PO4 3- phosphate
SiO3 2- silicate
SO4 2- sulfate
SO3 2- sulfite
S2O3 2- thiosulfate
Created by: laurenashley1994