Mixed Ionic/Covalent Compound Naming
For each of the following questions, determine whether the compound is ionic or
covalent and name it appropriately.
ionic; sodium carbonate
1. Na2CO3 _________________________________________
covalent; diphosphorous pentoxide
2. P2O5 _________________________________________
ionic; iron (II) sulfate
3. FeSO4 _________________________________________
ionic; cobalt (II) bromide
4. CoBr2 _________________________________________
covalent; sulfur hexasulfate
5. SF6 _________________________________________
covalent; boron tribromide
6. BBr3 ______________________________________
ionic; calcium sulfite
7. CaSO3 ______________________________________
covalent; dicarbon hexabromide (technically this is perhaps hexabromo ethane!)
8. C2Br6 ______________________________________
ionic; chromium (III) carbonate
9. Cr(CO3)3 ______________________________________
ionic; silver phosphide (the “I” can be omitted; Ag always +1)
10. Ag3P ______________________________________
covalent; iodine dioxide
11. IO2 ______________________________________
ionic; vanadium (IV) oxide
12. VO2 ______________________________________
ionic; lead (II) sulfide
13. PbS ______________________________________
ionic; calcium acetate
14. Ca(C2H3O2)2 ______________________________________________
ionic; titanium (IV) sulfate
15. Ti(SO4)2 ______________________________________________
ionic; iron (III) hypochlorite
16. Fe(ClO)3 ______________________________________________
covalent; sulfur dioxide
17. SO2 ______________________________________________
ionic; copper (I) hydroxide
18. CuOH ______________________________________________
ionic; zinc chlorate (the “II” can be omitted for zinc; always +2)
19. Zn(ClO4)2 ______________________________________________
ionic; vanadium (III) sulfide
20. V2S3 ______________________________________________
For each of the following questions, determine whether the compound is ionic or
covalent and write the appropriate formula for it. sorry can’t do subscripts!
covalent; N2O3
1. dinitrogen trioxide _________________________________________
covalent; N2
2. nitrogen _________________________________________
Covalent; CH4
3. methane _________________________________________
ionic; LiC2H3O2
4. lithium acetate _________________________________________
covalent; PF3
5. phosphorus trifluoride _________________________________________
ionic; V2O5
6. vanadium (V) oxide _________________________________________
ionic; Al(OH)3
7. aluminum hydroxide _________________________________________
ionic; ZnS
8. zinc sulfide _________________________________________
covalent SiF4 (maybe a little tricky?)
9. silicon tetrafluoride _________________________________________
ionic; Ag3PO4 (silver is always +1)
10. silver phosphate _________________________________________
covalent; P4Se3
11. tetraphosphorus triselenide ____________________________________
ionic; KC2H3O2
12. potassium acetate ______________________________________
ionic; Fe3P2
13. iron (II) phosphide ______________________________________
covalent; Si2B46
14. disilicon hexabromide ______________________________________
ionic; Ti(NO3)4
15. titanium (IV) nitrate ______________________________________
covalent; Se2I2
16. diselenium diiodide ______________________________________
ionic; Cu3PO4
17. copper (I) phosphate __________________________________________
ionic; Ga2O3 (tricky) since no charge was given; if it
18. gallium oxide _______________________________________________
were covalent, it would include di and tri prefixes.
covalent; S4N2
19. tetrasulfur dinitride ___________________________________________
NaClO
20. sodium hypochlorite___________________________________________