Oxford Area High School
AC Chemistry
Mr. Urig
WS #3 Formula Writing Packet
How are ionic formulas written and named?
How are molecular formulas named and written?
1. Give the name of each of the following simple binary ionic compounds.
A. Na2O E. BaI2
B. K2S F. Al2S3
C. MgCl2 G. CsBr
D. CaBr2 H. AgF
2. Give the mane of each of the following simple binary ionic compounds.
A. NaN3 E. SrO
B. K2S F. CaH2
C. AgBr G. BaCl2
D. MgI2 H. AlI3
3. Identify each case in which the name is incorrect. Give the correct name.
A. BaI2, barium hydroxide
B. Na2O, disodium oxide
C. SnCl4, tin (IV) chloride
D. SiO2, silver dioxide
E. FeBr3, iron (III) bromide
4. In which of the following pairs is the name incorrect? Give the correct name.
A. silver oxide, S2O
B. aluminum sulfide, Al2S3
C. trisodium nitride, Na3N
D. barium dichloride, BaCl2
E. strontium hydride, SrH2
5. Write the name of each of the following ionic substances. Use Roman numerals where appropriate.
A. SnBr2 D. Cr2O3
B. SnBr4 E. Hg2I2
C. CrO F. HgI2
6. Write the name of the following ionic compounds. Use Roman numerals where appropriate.
A. PbCl2 D. CuI2
B. Fe2O3 E. HgS
C. SnI2 F. CuI
7. Name each of the following binary compounds. The compounds are a mix of ionic and covalent materials.
A. CoCl3 D. Hg2O
B. P2Cl4 E. SnCl4
C. BCl3 F. SiCl4
8. Name each of the following binary compounds. The compounds are a mix of ionic and covalent materials.
A. B2H6 D. Ag2S
B. Ca3N2 E. CuCl2
C. CBr4 F. ClF
9. Name each of the following binary compounds. The compounds are a mix of ionic and covalent materials.
A. MgS D. ClBr
B. AlCl3 E. Li2O
C. PH3 F. P4O10
10. Name each of the following binary compounds. The compounds are a mix of ionic and covalent materials.
A. Al2O3 D. Co2S3
B. B2O3 E. N2O5
C. N2O4 F. Al2S3
11. Name the following compounds. Each has a polyatomic ion.
A. Fe(NO3)3 D. Al2(SO4)3
B. Co2(PO4)2 E. Cr(C2H3O2)2
C. Cr(CN)3 F. (NH4)2SO3
12. Name each of the following compounds that contain polyatomic ions.
A. NH4NO3 D. Ca3(PO4)2
B. KClO3 E. NaClO4
C. PbSO4 F. Cu(OH)2
13. Name each of the following acids.
A. HCl F. HClO3
B. H2SO4 G. HBr
C. HNO3 H. HF
D. HI I. HC2H3O2
E. HNO2
14. Name each of the following acids.
A. HOBr E. H2SeO4
B. HIO4 F. HOI
C. H3PO3 G. HIO2
D. HClO2 H. H2Te
15. Write the formula for the following compounds
A. lithium bromide
B. sodium iodide
C. silver sulfide
D. cesium oxide
E. beryllium iodide
F. barium hydride
G. aluminum fluoride
16.Write the formula for the following molecular formulas
A. phosphorous triiodide
B. silicon tetrachloride
C. dinitrogen pentoxide
D. iodine monobromide
E. diboron trioxide
F. dinitrogen tetroxide
G. carbon monoxide
17. Write the formula for the following molecular formulas
A. carbon dioxide
B. sulfur dioxide
C. dinitrogen tetrachloride
D. carbon tetraiodide
E. phosphorous pentafluoride
F. diphophorous pentoxide
18. Write the formulas for the following compounds containing polyatomic ions.
A. tin(IV) acetate
B. sodium peroxide
C. potassium sulfite
D. mercury (II) sulfate
E. ammonium phosphate
19. Write the formula for the following compounds containing polyatomic ions.
A. calcium phosphate
B. ammonium nitrate
C. barium sulfate
D. Iron (III) nitrate
E. copper (I) hydroxide
20. Write the formula for each of the following acids
A. nitrous acid E. periodic acid
B. acetic acid F. hydrosulfuric acid
C. hydroiodic acid G. bromous acid
D. perbromic acid H. sulfurous acid
21. Write the formula for the following acids
A. hydrocyanic acid E. hypochlorous acid
B. nitric acid F. hydrofluoric acid
C. sulfuric acid G. bromous acid
D. phosphoric acid H. hydrofluoric acid
22. Write the formula for each of the following compounds
A. lithium chloride
B. hydrobromic acid
C. calcium nitrate
D. sodium perchlorate
E. aluminum hydroxide
F. iron (II) sulfate
G. dinitrogen tetraoxide
H. phosphorous pentabromide
I. potassium sulfite
J. barium acetate
23. Write the formula for the following compounds
A. magnesium acetate
B. strontium iodide
C. hydroselenic acid
D. calcium phophide
E. silver perchlorate
F. iron (III) hydroxide
G. tin (II) fluoride
H. lead (II) oxide
24. Write the formula for each of the following ionic compounds
A. calcium chloride
B. silver oxide
C. aluminum sulfide
D. beryllium bromide
E. hydrogen sulfide
F. potassium hydride
G. magnesium iodide
H. cesium fluoride
25. Name the following molecular formulas.
A. sulfur dioxide
B. dinitrogen monoxide
C. xenon tetrafluoride
D. tetraphophorous decoxide
E. phosphorous pentachloride
F. sulfur hexafluoride
G. nitrogen dioxide
26. Write the formulas for the following materials
A. silver perchlorate
B. cobalt (III) hydroxide
C. ammonium nitrate
F. ferric hydroxide