Nomenclature and Formula Writing

1. Give the correct names for each of the compounds listed below.
a) NaCl sodium chloride
b) FrBr francium bromide
c) KF potassium fluoride
d) RaS radium sulfide
e) LiI lithium iodide
f) Li 3 N lithium nitride
g) AlBr 3 aluminum bromide
h) CdCl 2 cadmium chloride
i) K 2 O potassium oxide
j) InF 3 indium fluoride
k) ZnO zinc oxide
l) Y 2 O 3 yttrium oxide
m) CaTe calcium telluride
n) ZrS 2 zirconium sulfide
o) AgI silver iodide
p) BaSe barium selenide
q) MgO magnesium oxide
r) LaBr 3 lanthanum bromide
s) Sr 3 N 2 strontium nitride
t) Cd 3 As 2 cadmium arsenide
u) Rb 2 Se rubidium selenide
v) Rb 3 N rubidium nitride
w) BaF 2 barium fluoride
x) ZrTe 2 zirconium telluride
y) Cs 3 P cesium phosphide
z) Y 2 O 3 yttrium oxide
2. Write the correct chemical formula for each of the following compounds.
a) potassium bromide KBr
b) zinc bromide ZnBr 2
c) lithium iodide LiI
d) scandium chloride ScCl 3
e) magnesium chloride MgCl 2
f) magnesium oxide MgO
g) hydrogen sulfide H 2 S
h) gallium iodide GaI 3
i) sodium oxide Na 2 O
j) magnesium selenide MgSe
k) calcium fluoride CaF 2
l) aluminum oxide Al 2 O 3
m) beryllium chloride BeCl 2
n) potassium nitride K 3 N
o) aluminum bromide AlBr 3
p) zinc phosphide Zn 3 P 2
q) magnesium sulfide MgS
r) hafnium chloride HfCl 4
s) barium sulfide BaS
t) tantalum oxide Ta 2 O 5
u) zirconium nitride Zr 3 N 4
v) potassium selenide K 2 Se
w) germanium fluoride GeF 4
x) francium phosphide Fr 3 P
y) zinc arsenide Zn 3 As 2
z) scandium telluride Sc 2 Te 3
L. h. s. – Chemistry – Nomenclature – Answers – Page 1

3. Give the correct names for each of the compounds listed below.
a) CaSO 4 calcium sulfate
b) Ca 3 (AsO 4 ) 2 calcium arsenate
c) NH 4 Cl ammonium chloride
d) Mg 3 (AsO 3 ) 2 magnesium arsenite
e) NaC 2 H 3 O 2 sodium acetate
f) NaOCN sodium cyanate
g) Al 2 (SO 4 ) 3 aluminum sulfate
h) K 2 Cr 2 O 7 potassium dichromate
i) NH 4 NO 3 ammonium nitrate
j) KSCN potassium thiocyanate
k) Al(OH) 3 aluminum hydroxide
l) MgS 2 O 8 magnesium peroxydisulfate
m) NaHCO 3 sodium bicarbonate or
sodium hydrogen carbonate
n) Ta(IO 3 ) 5 tantalum iodate
o) (NH 4 ) 3 PO 4 ammonium phosphate
p) AgClO silver hypochlorite
q) KOH potassium hydroxide
r) NaC 8 H 11 N 2 O 3 sodium barbital
s) HNO 3 hydrogen nitrate
t) In(VO 3 ) 3 indium vandate
u) Na 2 HPO 3 sodium hydrogen phosphite
v) Ta 2 (TeO 4 ) 5 tantalum tellurate
w) Ca(NO) 2 calcium hyponitrite
x) Zn(VO 3 ) 2 zinc vandate
y) Ba(OH) 2 barium hydroxide
z) CaC 8 H 4 O 4 calcium phthalate
4. Write the correct chemical formula for each of the following compounds.
a) sodium acetate NaC 2 H 3 O 2
b) aluminum tetraborate Al 2 (B 4 O 7 ) 3
c) calcium bromate Ca(BrO 3 ) 2
d) sodium silicate Na 2 SiO 3
e) magnesium citrate Mg 3 (C 6 H 5 O 7 ) 2
f) calcium tungstate CaWO 4
g) potassium cyanide KCN
h) zinc phthalate ZnC 8 H 4 O 4
i) barium carbonate BaCO 3
j) indium stearate In(C 17 H 35 COO) 3
k) calcium dichromate CaCr 2 O 7
l) yttrium tripolyphosphite Y 5 (P 3 O 10 ) 3
m) zirconium bicarbonate Zr(HCO 3 ) 4
n) silver fluorite AgFO 2
o) scandium hydroxide Sc(OH) 3
p) aluminum citrate AlC 6 H 5 O 7
q) hafnium nitrate Hf(NO 3 ) 4
r) francium hydrogen oxalate FrHC 2 O 4
s) rubidium permanganate RbMnO 4
t) gallium sulfite Ga 2 (SO 3 ) 3
u) ammonium dichromate (NH 4 ) 2 Cr 2 O 7
v) cesium hypochlorite CsClO
w) sodium phosphite Na 3 PO 3
x) sodium dihydrogen phosphate NaH 2 PO 4
y) sodium hydrogen phosphate Na 2 HPO 4
z) zirconium uranate Zr(UO 4 ) 4
L. h. s. – Chemistry – Nomenclature – Answers – Page 2

5. Give the correct names for each of the compounds listed below.
a) FeI 3 iron(III) iodide
ferric iodide
b) Bi 2 (SO 4 ) 3 bismuth(III) sulfate
c) FeI 2 iron(II) iodide
ferrous iodide
d) HgHCO 3 mercury(I) bicarbonate
mercury(I) hydrogen carbonate
mercurous bicarbonate
mercurous hydrogen carboate
e) NiO nickel(II) oxide
f) Pb(H 2 PO 3 ) 2 lead(II) dihydrogen phosphite
plumbous dihydrogen phosphite
g) CuBr 2 copper(II) bromide
cupric bromide
h) Pt(CrO 4 ) 2 platinum(IV) chromate
i) Cr 2 O 3 chromium(III) oxide
j) Sb 2 (SO 5 ) 3 antimony(III) persulfate
k) AuCl 3 gold(III) chloride
auric chloride
l) Np(MnO 3 ) 5 neptunium(V) manganate
m) WO 3 tungsten(VI) oxide
n) PuPO 4 plutonium(III) phosphate
o) PdI 4 palladium(IV) iodide
p) Os(NO 3 ) 4 osmium(IV) nitrate
q) Co 2 S 3 cobalt(III) sulfide
r) Ti 3 N 4 titanium(IV) nitride
s) MnO 2 manganese(IV) oxide
t) NiSO 4 nickel(II) sulfate
u) Ti(Cr 2 O 7 ) 2 titanium(IV) dichromate
v) FeSO 3 iron(II) sulfite
ferrous sulfite
w) OsS 2 osmium(IV) sulfide
x) Hg(NO 2 ) 2 mercury(II) nitrite
mercuric nitrite
y) SnSO 4 tin(II) sulfate
stannous sulfate
z) AuCl 3 gold(III) chloride
auric chloride
6. Write the correct chemical formula for each of the following compounds.
a) lead(IV) oxide PbO 2
b) antimony(V) bromite Sb(BrO 2 ) 5
c) cobalt(II) fluoride CoF 2
d) ferric thiosulfate Fe 2 (S 2 O 3 ) 3
e) copper(II) cyanide Cu(CN) 2
f) stannic tartrate Sn(C 4 H 4 O 6 ) 2
g) copper(I) nitride Cu 3 N
h) platinum(IV) dichromate Pt(Cr 2 O 7 ) 2
i) nickel(II) acetate Ni(C 2 H 3 O 2 ) 2
j) tin(II) peroxydisulfate SnS 2 O 8
k) gallium(III) acetate Ga(C 2 H 3 O 2 ) 3
l) gold(III) uranate Au(UO 4 ) 3
m) osmium(IV) sulfate Os(SO 4 ) 2
n) polonium(IV) sulfide PoS 2
o) vanadium(V) iodate V(IO 3 ) 5
p) plumbic phosphate Pb 3 (PO 4 ) 4
q) molybdenum(VI) benzoate Mo(C 6 H 5 COO) 6
r) niobium(V) oxide Nb 2 O 5
s) aurous silicate Au 2 SiO 3
t) titanium(IV) sulfite Ti(SO 3 ) 2
u) cobaltous chloride CoCl 2
v) samarium(III) nitrite Sm(NO 2 ) 3
w) plumbic hydroxide Pb(OH) 4
x) terbium (IV) periodate Tb(IO 4 ) 4
y) iridium(IV) periodate Ir(IO 4 )4
z) stannous bicarbonate Sn(HCO 3 ) 2
L. h. s. – Chemistry – Nomenclature – Answers – Page 3

7. Give the correct names for each of the compounds listed below.
a) CS 2 carbon disulfide
b) SF 2 sulfur difluoride
c) CO carbon monoxide
d) ICl 3 iodine trichloride
e) CCl 4 carbon tetrachloride
f) As 2 O 3 diarsenic trioxide
g) PBr 3 phosphorus tribromide
h) IF 5 iodine pentafluoride
i) PBr 5 phosphoruse pentabromide
j) N 2 O 4 dinitrogen tetroxide
k) SO 3 sulfur trioxide
l) SO 2 sulfur dioxide
m) N 2 O 3 dinitrogen trioxide
n) Cl 2 O dichlorine monoxide
o) SF 6 sulfur hexafluoride
p) SiO 2 silicon dioxide
8. Write the correct chemical formula for each of the following compounds.
a) nitrogen monoxide NO
b) carbon dioxide CO 2
c) iodine monochloride ICl
d) sulfur trioxide SO 3
e) chlorine trifluoride ClF 3
f) phosphorus pentachloride PCl 5
g) bromine pentafluoride BrF 5
h) carbon tetrachloride CCl 4
i) dinitrogen tetroxide N 2 O 4
j) diphosphorus trisulfide P 2 S 3
k) chlorine dioxide ClO 2
l) silicon disulfide SiS 2
m) silicon tetrafluoride SiF 4
n) sulfur dioxide SO 2
o) tricarbon disulfide C 3 S 2
p) dinitrogen pentoxide N 2 O 5
L. h. s. – Chemistry – Nomenclature – Answers – Page 4

9. Give the correct names for each of the compounds listed below.
a) Li 2 SiF 6 •2H 2 O lithium hexafluorosilicate dehydrate
b) Na 2 B 4 O 7 •10H 2 O sodium tetraborate decahydrate
c) MgSO 3 •6H 2 O magnesium sulfite hexahydrate
d) NaC 2 H 3 O 2 •3H 2 O sodium acetate trihydrate
e) CuSO 4 •5H 2 O copper(II) sulfate pentahydrate or cupric sulfate pentahydrate
f) MgSO 4 •9H 2 O magnesium sulfate nonahydrate
g) CaSO 4 •2H 2 O calcium sulfate dihydrate
h) MgCl 2 •6H 2 O magnesium chloride hexahydrate
i) FeSO 4 •7H 2 O iron(II) sulfate heptahydrate or ferrous sulfate heptahydrate
j) NaHS•H 2 O sodium hydrogen sulfide monohydrate or sodium bisulfide monohydrate
10. Write the correct chemical formula for each of the following compounds.
a) calcium chloride hexahydrate CaCl 2 •6H 2 O
b) barium chloride dihydrate BaCl 2 •2H 2 O
c) calcium nitrate tetrahydrate Ca(NO 3 ) 2 •4H 2 O
d) sodium chromate tetrahydrate Na 2 CrO 4 •4H 2 O
e) copper(II) nitrate trihydrate Cu(NO 3 ) 2 •3H 2 O
f) plumbous acetate trihydrate Pb(C 2 H 3 O 2 ) 2 •3H 2 O
g) aluminum chloride hexahydrate AlCl 3 •6H 2 O
h) sodium dihydrogen phosphate nonahydrate NaH 2 PO 4 •9H 2 O
i) cobalt(II) nitrate hexahydrate Co(NO 3 ) 2 •6H 2 O
j) cobaltous sulfate hexahydrate CoSO 4 •6H 2 O
L. h. s. – Chemistry – Nomenclature – Answers – Page 5

11. Give the correct formula for each of the compounds listed below.
a) hydrochloric acid HCl(aq)
b) citric acid H 3 C 6 H 5 O 7 (aq)
c) benzoic acid HC 6 H 5 COO(aq)
d) acetic acid HC 2 H 3 O 2 (aq)
e) periodic acid HIO 4 (aq)
f) lactic acid HC 3 H 5 O 3 (aq)
g) formic acid HCOOH(aq)
h) iodic acid HIO 3 (aq)
i) oxalic acid H 2 C 2 O 4 (aq)
j) sulfurous acid H 2 SO 3 (aq)
k) sulfuric acid H 2 SO 4 (aq)
l) carbonic acid H 2 CO 3 (aq)
m) phosphorous acid H 3 PO 3 (aq)
n) hydroiodic acid HI(aq)
o) phosphoric acid H 3 PO 4 (aq)
p) nitrous acid HNO 2 (aq)
q) thiosulfurous acid H 2 S 2 O 2 (aq)
r) nitric acid HNO 3 (aq)
s) hydrotelleric acid H 2 Te(aq)
t) hydrocyanic acid HCN(aq)
u) hydroselenic acid H 2 Se(aq)
v) nitrous acid HNO 2 (aq)
w) hypooxalous acid H 2 C 2 O 2 (aq)
x) hydrofluoric acid HF(aq)
y) boric acid H 3 BO 3 (aq)
z) hydrosulfuric acid H 2 S(aq)
12. Write the correct name for each of the following compounds.
a) HC 2 H 3 O 2 (aq) acetic acid
b) H 2 B 4 O 7 (aq) tetraboric acid
c) H 3 AsO 3 (aq) arsenous acid
d) HI(aq) hydroiodic acid
e) H 3 BO 3 (aq) boric acid
f) HF(aq) hydrofluoric acid
g) HCNO(aq) cyanic acid
h) H 2 SO 4 (aq) sulfuric acid
i) H 2 C 4 H 4 O 6 (aq) tartric acid
j) HCN(aq) hydrocyanic acid
k) H(HCOO)(aq) formic acid
l) HNO3(aq) nitric acid
m) HC 5 H 8 NO 4 (aq) glutamic acid
n) H 3 PO 4 (aq) phosphoric acid
o) HClO(aq) hypochlorous acid
p) HBr(aq) hydrobromic acid
q) H 2 C 2 O 4 (aq) oxalic acid
r) H 2 CO 3 (aq) carbonic acid
s) H 2 SiO 2 (aq) silicous acid
t) HFO 2 (aq) fluorous acid
u) HC 17 H 35 COO(aq) stearic acid
v) H 3 PO 3 (aq) phosphorous acid
w) HCl(aq) hydrochloric acid
x) HBrO 2 (aq) bromous acid
L. h. s. – Chemistry – Nomenclature – Answers – Page 6

A. Give the correct chemical formula for each of the following compounds.
1. sodium hydroxide NaOH
2. copper(II) sulfide CuS
3. potassium phosphide K 3 P
4. ozone O 3
5. lithium nitride Li 3 N
6. lithium hydride LiH
7. magnesium percarbonate MgCO 4
8. aluminum sulfite Al 2 (SO 3 ) 3
9. sodium sulfate heptahydrate Na 2 SO 4 •7H 2 O
10. sodium carbonite Na 2 CO 2
11. perchloric acid HClO 4 (aq)
12. calcium hyponitrite Ca(NO) 2
13. nitrous acid HNO 2 (aq)
14. sulfurous acid H 2 SO 3 (aq)
15. zinc acetate trihydrate Zn(C 2 H 3 O 2 ) 2 •3H 2 O
16. potassium hypochromite K 2 CrO 2
17. barium nitride Ba 3 N 2
18. cobalt(II) perphosphate Co 3 (PO 5 ) 2
19. carbon dioxide CO 2
20. sulfuric acid H 2 SO 4 (aq)
21. iron(III) chloride FeCl 3
22. chromium(III) acetate Cr(C 2 H 3 O 2 ) 3
23. hydrobromic acid HBr(aq)
24. silver carbonate Ag 2 CO 3
25. hydrogen bromide HBr(g)
26. barium chloride BaCl 2
27. boron trifluoride BF 3
28. calcium hydroxide Ca(OH) 2
29. calcium hydride CaH 2
30. lead(II) hyposulfite PbSO 2
31. hypophosphorous acid H 3 PO 2 (aq)
32. carbonic acid H 2 CO 3
33. beryllium perchlorate Be(ClO 4 ) 2
34. ferrous hydroxide Fe(OH) 2
35. nickel(II) peracetate Ni(C 2 H 3 O 3 ) 2
36. mercuric chloride dehydrate HgCl 2 •2H 2 O
37. dinitrogen trioxide N 2 O 3
38. sodium hypoiodite NaIO
39. potassium cyanide KCN
40. potassium aluminum sulfate KAl(SO 4 ) 2
41. ammonium hypophosphite (NH 4 ) 3 PO 2
42. potassium uranate KUO 4
43. lithium peroxide Li 2 O 2
44. perchloric acid HClO 4 (aq)
45. ammonia NH 3
46. iodous acid HIO 2 (aq)
47. hydrogen peroxide H 2 O 2
48. gold(III) periodate Au(IO 4 ) 3
49. sodium oxide Na 2 O
50. sodium glutamate NaC 5 H 8 NO 4
51. iron(II) sulfate FeSO 4
52. barium perchlorate Ba(ClO 4 ) 2
53. manganese(II) nitrate Mn(NO 3 ) 2
54. osmium(IV) thiosulfate Os(S 2 O 3 ) 2
55. chromium(III) nitrate Cr(NO 3 ) 3
56. boric acid H 3 BO 3 (aq)
57. rubidium acetate RbC 2 H 3 O 2
58. hypoiodous acid HIO(aq)
59. cerium(III) phosphate CePO 4
60. nitrous acid HNO 2 (aq)
61. chromium(III) nitride CrN
62. nitric acid HNO 3 (aq)
63. magnesium nitrate Mg(NO 3 ) 2
64. hypoiodous acid HIO(aq)
65. copper(II) tartrate CuC 4 H 4 O 6
66. arsenous acid H 3 AsO 3 (aq)
67. magnesium hexafluorosilicate MgSiF 6
68. cyanic acid HOCN(aq)
L. h. s. – Chemistry – Nomenclature – Answers – Page 7

B. Give the correct names for each of the compounds listed below.
1. SnO 2 tin(IV) oxide
stannic oxide
2. Sb 2 S 3 antimony(III) sulfide
3. HgS mercury(II) sulfide
mercuric sulfide
4. MoS 2 molybdenum(IV) sulfide
5. FeS iron(II) sulfide
ferrous sulfide
6. HgO mercury(II) oxide
mercuric oxide
7. AuCl 3 gold(III) chloride
auric chloride
8. NiBr 2 nickel(II) bromide
9. MgO magnesium oxide
10. NaBr sodium bromide
11. Al 2 O 3 aluminum oxide
12. CaO calcium oxide
13. Ag 2 S silver sulfide
14. CaH 2 calcium hydride
15. K 2 CO 3 potassium carbonate
16. (NH 4 ) 2 S ammonium sulfide
17. Cr(NO 3 ) 2 chromium(II) nitrate
18. KMnO 4 potassium permanganate
19. SO 3 sulfur trioxide
20. P 2 S 5 diphosphorus pentasulfide
21. As 2 S 3 diarsenic trisulfide
22. CCl 4 carbon tetrachloride
23. N 2 O 4 dinitrogen tetroxide
24. NO nitrogen monoxide
25. H 3 BO 3 boric acid
26. MgSCN magnesium thiocyanate
27. HNO 2 nitrous acid
28. As 2 S 5 diarsenic pentasulfide
29. H 3 PO 4 phosphoric acid
30. Fe(NO 3 ) 2 iron(II) nitrate
ferrous nitrate
31. H 3 AsO 3 arsenous acid
32. Cu 2 SO 4 copper(I) sulfate
cuprous sulfate
33. HIO 3 iodic acid
34. K 2 C 2 O 4 potassium oxalate
35. Na 3 PO 4 sodium phosphate
36. Na 2 CrO 4 sodium chromate
37. LiClO 4 lithium perchlorate
38. Zn(C 2 H 3 O) 2 zinc acetite
39. Au(CN) 3 gold(III) cyanide
40. K 2 CrO 4 potassium chromate
41. KHCO 3 potassium bicarbonate
potassium hydrogen carbonate
42. Mn(OH) 2 manganese(II) hydroxide
43. Ba(SCN) 2 barium thiocyanate
44. RbCN rubidium cyanide
45. NaBrO sodium hypobromite
46. Al 2 (SO 5 ) 3 aluminum persulfate
47. Fe(ClO) 2 iron(II) hypochlorite
ferrous hypochlorite
48. (NH 4 ) 2 CO 3 ammonium carbonate
49. Zn(NO 2 ) 2 zinc nitrite
50. Ca(NO 3 ) 2 calcium nitrate
51. NH 4 OH ammonium hydroxide
52. NiPO 2 nickel(III) hypophosphite
53. NH 3 ammonia
54. CaSO 4 calcium sulfate
55. Pb(HSO 4 ) 4 lead(IV) hydrogen sulfate
plumbic bisulfate
56. Ca(ClO 3 ) 2 calcium chlorate
57. AlPO 4 aluminum phosphate
58. Li 2 CO 2 lithium carbonite
59. PCl 5 phosphorus pentachloride
60. Mg(NO 3 ) 2 magnesium nitrate
61. SO 2 sulfur dioxide
62. BaCr 2 O 7 barium dichromate
63. SrH 2 strontium hydride
64. H 2 SO 4 sulfuric acid
65. Na 2 O 2 sodium peroxide
66. CsH 2 PO 4 cesium dihydrogen phosphate
67. Pb 3 (PO 3 ) 2 lead(II) phosphite
plumbous phosphite
68. HBr(aq) hydrobromic acid
L. h. s. – Chemistry – Nomenclature – Answers – Page 8