CHM 2045C Sample Exam                      Name: ____________________

 

Module Four: Part E    Polyatomic Ions                 4 points

 

Using a periodic chart write the names or formulas of the following polyatomic ions depending on whether the formula or name is given:

 

1.   CO32-       _____________________

 

2.   SO32-       _____________________

 

3.   PO33-     _____________________

 

4.   ClO31-     _____________________

 

5.   NO31-     _____________________

 

 

6.   Hydroxide ion         ________

 

 

7.   Ammonium ion       ________

 

 

8.   Hypochlorite ion      ________

 

 

9.   Nitrite ion                 ________

 

 

10.  Phosphate ion         ________

 

Bonus write formula, name, and charge for any polyatomic ion not above: