Honors Chemistry
Mr. Trubic
St. John’s College High School
Nomenclature: Extra Practice
Answer Key
Name ________________________________________________
Date ______________
Questions 1–15: Write the chemical formula of each of the substances. You may use any extra space for scratch work.
1. phosphorus pentachloride
PCl5
______________________
2. calcium oxide
CaO
______________________
3. sodium nitrate
NaNO3
______________________
4. copper(I) chlorite
CuClO2
______________________
5. chloric acid
HClO3
______________________
6. dinitrogen pentoxide
N2O5
______________________
MnBr2 · 3H2O
7. manganese(II) bromide trihydrate ______________________
8. barium hydride
BaH2
______________________
9. hydroiodic acid
HI
______________________
10. ammonium acetate
NH4C2H3O2
______________________
11. silicon dioxide
SiO2
______________________
12. tin(IV) carbonate
Sn(CO3)2
______________________
13. zinc bromide
ZnBr2
______________________
14. octane
C8H18
______________________
15. oxalic acid
H2C2O4
______________________
(TURN OVER)
Honors Chemistry
Mr. Trubic
St. John’s College High School
Nomenclature: Extra Practice
Questions 16–30: Write the name of each of the given substances. You may use any extra space for scratch work.
16. KOH
potassium hydroxide
______________________________________________
17. CoCl2 · 6 H2O
cobalt(II) chloride hexahydrate
______________________________________________
18. Pb3(PO4)2
lead(II) phosphate
______________________________________________
19. CCl4
carbon tetrachloride
______________________________________________
20. NaCN
sodium cyanide
______________________________________________
21. Li2O
lithium oxide
______________________________________________
22. CH4
methane
______________________________________________
23. Mg(ClO2)2
magnesium chlorite
______________________________________________
24. C4H10
butane
______________________________________________
25. P3O5
triphosphorus pentoxide
______________________________________________
26. NO
nitrogen monoxide
______________________________________________
27. Ag2Cr2O7
silver dichromate
______________________________________________
28. CuSO4
copper(II) sulfate
______________________________________________
29. BF3
boron trifluoride
______________________________________________
30. Ni(HSO3)2
nickel(II) bisulfite or nickel(II) hydrodgen
______________________________________________
sulfite