Name : _____________________________
Score: _____ /26
Polyatomic ions:
Nitrate ion NO3
CO3
NH4
Self Assessment: Naming Compounds and
Balancing Equations
-
OH - hydroxide ion
PO4 3- phosphate ion
2+
carbonate ion
ammonium ion
Name the following and count the number of atoms
1. _____ Li2O __________________________
2. _____ P4S3 __________________________
3. _____ H2CO3 __________________________
4. _____ SiF4 __________________________
Write the formula:
5. ____________ sulfur dioxide
6. ____________ ammonium carbonate
7. ____________ tricarbon tetrahydride
8. ____________ lithium chloride
What’s wrong with this name/formula…?
9. ___________________________________________ CO
monocarbon monoxide
10. __________________________________________ MgI4
magnesium iodide
11. __________________________________________ H3PO4 hydrogen phosphorus oxide
12. __________________________________________ NBr3
nitrogen tribromide
13. __________________________________________ BeCl2
beryllium dichloride
14. __________________________________________ (NH4)3N triammonium monitride
Determine the charge ion each cation in bold
15. _________ FeO2
16. _________ K2S
17. _________ Ni3N
18. _________ PbO2
Balance each equation. Do not put a 0 or 1 if there is only 1 of a compound.
19. _____ HgO + _____ Cl2  ______ HgCl + ______ O2
20. _____ Na + ______ Br2  ______ NaBr
21. _____ Al2O3  ______ Al + ______ O2
22. _____ KCl + _____ Mg3(PO4)2  _____ MgCl2 + _____ K3PO4
Put it all together. First come up with the compound from each name, then
balance the equation.
23. - 24. Potassium iodide and calcium nitrate react to make potassium nitrate and
calcium iodide.
25. – 26. Nitrogen gas and hydrogen gas react to form nitrogen trihydride.
Answer key_
Name : _
Score: _____ /26
Self Assessment: Naming Compounds and
Balancing Equations
Polyatomic ions:
Nitrate ion NO3
-
OH - hydroxide ion
PO4 3- phosphate ion
CO3
NH4
2+
carbonate ion
ammonium ion
Name the following and count the number of atoms
3__ Li2O __lithium oxide__
1. __
7__ P4S3 __tetraphosphorus trisulfide__
2. __
6__ H2CO3 __hydrogen carbonate__
3. __
5__ SiF4 __silicon tetrafluoride__
4. __
Write the formula:
SO2__ sulfur dioxide
5. __
(NH4)2CO3_ ammonium carbonate
6. __
C3H4__ tricarbon tetrahydride
7. __
LiCl_ lithium chloride
8. _
What’s wrong with this name/formula…?
don’t need mono on carbon_(carbon monoxide)_ CO
9. __
monocarbon monoxide
doesn’t balance (Mg2+ I-)_(MgI2)_ MgI4
magnesium iodide
polyatomic_(hydrogen phosphate)__ H3PO4
hydrogen
10. __
11. __
phosphorus oxide
nothing…it’s OK______________ NBr3
12. __
13. __
no “di”, it’s ionic____ BeCl2
nitrogen tribromide
beryllium dichloride
ionic with polyatomic
14. __
(NH4)3N
(ammonium nitride)_____
triammonium monitride
Determine the charge ion each cation in bold
+4____ FeO2
16. ____
+1___ K2S
+1____ Ni3N
18. ____
15. ____
17. ____
+4____ PbO2
Balance each equation. Do not put a 0 or 1 if there is only 1 of a compound.
2__ HgO + _____ Cl2  ___2__ HgCl + ______ O2
19. __
2__ Na + ______ Br2  ___2__ NaBr
20. __
2__ Al2O3  __4___ Al + ___3__ O2
21. __
6__ KCl + _____ Mg3(PO4)2  __3__ MgCl2 + __2__ K3PO4
22. __
Put it all together. First come up with the compound from each name, then
balance the equation.
23. - 24. Potassium iodide and calcium nitrate react to make potassium nitrate and
calcium iodide.
KI +
Ca(NO3)2
2 KI
+
 KNO3 +
Ca(NO3)2
CaI2
 2KNO3 + CaI2
25. – 26. Nitrogen gas and hydrogen gas react to form nitrogen trihydride.
N2 +
H2  NH3
N2 +
3 H2
 2 NH3