1. What is the formula for: Ammonium? NH 4 +

2. What is the formula for: Acetate? CH 3 COO -

3. What is the formula for: Carbonate? CO 3 2-

4. What is the formula for: Bicarbonate? HCO 3 -

5. What is the formula for: Chromate? CrO 4 2-

6. What is the formula for: Dichromate? Cr 2 O 7 2-

7. What is the formula for: Hydroxide? OH -

8. What is the formula for: Nitrate? NO 3 -

9. What is the formula for: Permanganate? MnO 4 -

10. What is the formula for: Phosphate? PO 4 3-

11. What is the formula for: Sulfate? SO 4 2-

12. What is the formula for: Perchlorate? ClO 4 -

13. What is the formula for: Sulfite? SO 3 2-

14. What is the formula for: Cyanide? CN -

15. What is the formula for: Chlorate? ClO 3 -

16. What the formula for: Chlorite? ClO 2 -

17. What is the formula for: Hypochlorite? ClO -

18. What Polyatomic Ion is: NH 4 + Ammonium

19. What Polyatomic Ion is: CH 3 COO - Acetate

20. What Polyatomic Ion is: CO 3 2- Carbonate

21. What Polyatomic Ion is: HCO 3 - Bicarbonate

22. What Polyatomic Ion is: CrO 4 2- Chromate

23. What Polyatomic Ion is: Cr 2 O 7 2- Dichromate

24. What Polyatomic Ion is: OH - Hydroxide

25. What Polyatomic Ion is: NO 3 - Nitrate

26. What Polyatomic Ion is: MnO 4 - Permanganate

27. What Polyatomic Ion is: PO 4 3- Phosphate

28. What Polyatomic Ion is: SO 4 2- Sulfate

29. What Polyatomic Ion is: ClO 4 - Perchlorate

30. What Polyatomic Ion is: SO 3 2- Sulfite

31. What Polyatomic Ion is: CN - Cyanide

32. What Polyatomic Ion is: ClO 3 - Chlorate

33. What Polyatomic Ion is: ClO 2 - Chlorite

34. What Polyatomic Ion is: ClO - Hypochlorite

35. Charges, Charges, Charges! 1+ {Ammonium}… how to remember: Think: I got an A+ on Mon. 1- {Acetate, Bicarbonate, Hydroxide, Nitrate, Permanganate, Perchlorate} How to remember: Think: Alphabet Order… AB, OPP, and a random N for fun, minus one! 2- {Carbonate, Chromate, Dichromate, Sulfate, Sulfite} Think: Chro, Carb, Sulf (CCS)… 2- 3- {Phosphate} Think: Its your fate to have three Good friends