Chapter(s) 8 & 9
Name _________________________ Period _____
Study Packet: Chemical Names &
Formulas
Set I: Naming or writing formulas of Molecular Compounds
On a separate sheet of paper, write the name or formula for the molecular compounds or acids and
highlight any ionic compounds.
1) Dinitrogen Pentoxide
8) Aluminum oxide
15) Carbon Tetrachloride 22) PBr5
2) HCl
9) NF3
16) PCl3
23) Silicon dioxide
3) Calcium iodide
10) CdCl2
17) Potassium bromide
24) Diarsenic trisulfide
4) ICl3
11) SO2
18) Thallium sulfide
25) H2O
5) SO2
12) NO
19) HNO3
26) CO
6) Carbon Disulfide
13) Sulfur Trioxide
20) FeI2
27) N2O4
7) H2SO4
14) Carbon Tetraiodide
21) CCl4
28) Tin (IV) oxide
Set II: Ions
Write the names of the ions below on a separate sheet of paper
1. Fe3+
5. Pb3+
9. Na+
13. C4+
17. Sb3+
2. Sb5+
6. Cu+
10. Co2+
14. C4-
18. Sn2+
3. H+
7. Cu2+
11. Cl-
15. N3-
19. Ag+
4. H-
8. O2-
12. Br-
16. Mn2+
Write the symbols for the ions below on a separate sheet of paper
20. Copper (I) ion
25. Zinc ion
30. Cadmium ion
35. Sulfide ion
21. Oxide ion
26. Potassium ion
31. Lead(IV) ion
36. Hydride ion
22. Carbide ion
27. Nickel (II) ion
32. Antimony (IV) ion
37. Telluride ion
23. Antimony(III) ion
28. Sodium ion
33. Neon ion
38. Magnesium ion
24. iodide ion
29. Nitride ion
34. Silver ion
Answer the additional questions
39. T/F Tin should always have a roman numeral.
40. T/F If you are not sure if something needs a roman numeral it is always ok to add one.
41. T/F All transition metals need roman numerals.
42. T/F Silver always has an oxidation number of +1.
43. Circle the ions that need roman numerals when being named.
Cl- Cd2+ Cu2+ O2- Cu3+
Zn2+
Fe4+ Co3+ K+
Re2+
Sb4+
Tc2+
Au1+
Nb2+
Ag1+
Pb4+
As2+
Si2-
Sn2+
Cr4+
Set III: Naming Ionic Compounds
Name the compound or write the formula. You should leave the ion column blank for the molecular
compounds.
Name
Ions
Formula
1. chromium (III) oxide
2.
Li3P
3.
ICl3
4. magnesium phosphide
5.
ZnO
6.
PbS
7.
MgS
8. nitrogen trioxide
9. barium oxide
10. cadmium chloride
11. antimony (V) chloride
12. Silicon dioxide
13. lead (IV) iodide
14.
CS2
15. tin(II) chloride
16.
CuI2
17.
N3O
18.
CaBr2
19.
SnF4
20. iron (II) iodide
21. sodium sulfide
22. copper (I) chloride
23. indium sulfide
24.
AgCl
25. cesium phosphide
26.
27. aluminum iodide
28. tin (IV) oxide
Sb2S3
Set IV: More Practice
Write formulas or names for the following compounds. Note: Ionic and Molecular compounds are mixed. Some
of the compounds might not really exist in nature.
1.
2.
3.
4.
5.
6.
7.
8.
9.
N2S
dintrogen pentoxide
phosphorous trichloride
strontium iodide
MgF2
Ni3P2
magnesium phosphide
carbon disulfide
K2O
10.
11.
12.
13.
14.
15.
16.
17.
sulfur trioxide
AsO2
carbon tetrabromide
potassium oxide
PbS
sodium bromide
CdO
Silver bromide
18.
19.
20.
21.
22.
23.
24.
trinitrogen dichloride
zinc oxide
NI3
zinc sulfide
iron (III) oxide
silicon tetrabromide
lithium phosphide
Answer these additional questions
25. Correct the formulas below if they are incorrectly written or impossible to form
a) BeO2
b) AgO
c) ZnF
d) KCl
e) Mg3-N2+
f) Ca2I
26. Correct the names below if they are incorrectly written or impossible to form
a) Beryllium (II) oxide
b) Silver(I) Oxide c) Zinc Fluoride
d) Potassium chloride(I)
Set V: Writing Formulas and Names with Polyatomic Ions
Give formulas for the following compounds. Write the symbols for the ions then write the correct formula as
shown. Don’t forget to check for molecular compounds.
Name
Ions
Formula
1. zinc acetate
2. lead (IV) nitrate
3.
FeCrO4
4.
Ca3(PO4)2
5. copper (II) sulfate
6. sodium carbonate
7. potassium perchlorate
8. silver sulfite
9.
KClO3
10.
N2O3
11. ammonium nitrate
12.
HCl
13. iron (II) chlorite
14.
H3PO4
15.
Mg(HCO3)2
MORE ON THE NEXT PAGE
16.
Ag2SO4
17. potassium bicarbonate
18.
LiNO2
19. manganese (IV) carbonate
20.
Mn(NO2)4
21. ammonium chloride
22.
K2CrO4
23. iron (II) chlorate
24. potassium permanganate
25.
Ca(OH)2
26. sodium bicarbonate
27.
(NH4)2SO4
Set VI: Even More Practice
Write the name for the following compounds. Remember to include the oxidation number of any metals with
varying oxidation numbers.
1) sodium phosphate
11) P2Br4
21) HgO
2) magnesium cyanide
12) Na2SO4
22) KMnO4
3) ammonium hydroxide
13) KNO3
23) lithium sulfate
4) Sr(ClO2)2
14) sodium sulfate
24) Hg2O
5) FeCrO4
15) S3Cl6
25) Cr3(PO4)2
6) Pb(NO3)2
16) barium permanganate
26) Carbon disulfide
7) NaOH
17) MgCO3
27) CsMnO4
8) zinc permanganate
18) NH4NO3
28) Sn3(PO4)2
9) Cu3PO4
19) Manganese (IV) carbonate
29) silver sulfite
10) trinitrogen dichloride
20) Al(HSO4)3
30) V3(PO4)4
Answer these additional questions
31) What are polyatomic ions?_______________________________________________________
32) What kind of bonds are within the polyatomic ions?___________________________________
33) What kind of bonds do polyatomic ions make with other ions? __________________________
34) Can polyatomic ions bond with other ions and make covalent bonds? Why or Why not?
____________________________________________________________________________
35) What is the charge on a sulfate ion? ______________________________________________
36) Can polyatomic ions be cations, anions, or both? _____________________________________
TEST REVIEW: Naming & Formulas
Objectives to be tested include, but are not exclusive to:
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Distinguishing between ionic compounds and molecular compounds
Identifying properties of ionic and molecular compounds
Using the periodic table to determine the charge of an element
Identifying the charges for polyatomic ions
Writing formulas given compound name
Writing names given a formula
Identifying formulas for common acids
Name/write formulas for common molecular compounds: water, methane, ammonia
Part I: Identify which compounds are Ionic and Molecular then write formulas for each of the following
compounds. Example: carbon tetrafluoride - M (molecular) - CF4
1) sodium bicarbonate
11) carbon disulfide
21) barium bromide
2) dintrogen pentoxide
12) ammonium hydroxide
22) silver nitrate
3) phosphorous trichloride
13) sulfur trioxide
23) trinitrogen dichloride
4) copper (II) hydroxide
14) sodium hydroxide
24) zinc sulfate
5) iron (I) perchlorate
15) carbon tetrabromide
25) zinc sulfide
6) strontium iodide
16) potassium hydroxide
26) iron (III) oxide
7) zinc permanganate
17) lithium sulfate
27) ammonium acetate
8) magnesium phosphate
18) sodium bromide
28) silicon tetrabromide
9) sulfuric acid
19) silver sulfite
29) hydrochloric acid
10) manganese (IV) carbonate
20) nitric acid
30) lithium phosphide
Part II: On a separate piece of paper, write the names of the following compounds.
1) NI3
9) LiBr
17) CuSO3
25) KI
2) H2SO4
10) MgF2
18) KNO2
26) AgMnO4
3) ZnCO3
11) NH4F
19) LiCN
27) Rb2HCO3
4) PbS
12) K2O
20) P2O5
28) FeO2
5) Zn(OH)2
13) Ca(MnO4)2
21) Ni3P2
29) Sr(ClO2)
6) N2S
14) Be(NO3)2
22) Cr(ClO3)3
30) S3Cl6
7) SO2
15) HCl
23) Sr(NO3)2
31) P2Br4
8) CoCl3
16) HNO3
24) Ba(OH)2
32) Pb(Cr2O7)