Polyatomic Ion Worksheet - Mat-Su Borough School District

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Name ____________ Period ________
Polyatomic Ion Worksheet
Place the charges on each ion – Write the Formula - Name the Compound
Remember – The cation always goes first.
+1
-1
Example: NH
& I
Formula: NH
I
Name: Ammonium Iodide
4
4
1.
NH
&
O
Formula: ______________ Name: _____________________
4
2.
Ca
&
CO
Formula: ______________ Name: _____________________
3
3.
HCO
&
Na
Formula: ______________ Name: _____________________
3
4.
NO
&
Mg
Formula: ______________ Name: _____________________
3
5.
K
&
SO
Formula: ______________ Name: _____________________
4
6.
Li
&
PO
Formula: ______________ Name: _____________________
4
Finding the Formula from the Name
+1
-1
Example:
Lithium Chloride
Ions: Li
& Cl
Formula: LiCl
1.
Sodium Oxide
Ions: ______________________
Formula: _______________
2.
Potassium Bromide
Ions: ______________________
Formula: _______________
3.
Calcium Nitride
Ions: ______________________
Formula: _______________
4.
Beryllium Sulfide
Ions: ______________________
Formula: _______________
5.
Magnesium Iodide
Ions: ______________________
Formula: _______________
6.
Aluminum Oxide
Ions: ______________________
Formula: _______________
7.
Ammonium Bromide Ions: ______________________
Formula: _______________
8.
Calcium Bicarbonate Ions: ______________________
Formula: _______________
9.
Potassium Phosphate Ions: ______________________
Formula: _______________
10.
Aluminum Sulfate
Ions: ______________________
Formula: _______________

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