1. Ionic & Covalent Review
Bonds, Properties, Names, Formulas

2. Categorize the following as Ionic or Covalent:
Compound
Ionic or Covalent?
CaCl2
Ionic
NO2
Covalent
CuNO3
(NH4)2O
C4H10

3. Name the following: Formula Name CaCl2 Calcium chloride NO2
Nitrogen dioxide
CuNO3
Copper (I) nitrate
(NH4)2O
Ammonium oxide
C4H10
Tetracarbon decahydride

4. Which of these would conduct electricity?
CaCl2(s) or CaCl2(aq)
CaCl2(aq) salts can conduct when dissolved or molten (liquid)

5. Which of these would conduct electricity?
NO2(aq) or CaCl2(aq)
CaCl2(aq) covalent compounds can’t conduct electricity

6. Which of these would conduct more electricity?
NaCl(aq) or CaCl2(aq)
CaCl2(aq) (it has more ions in solution)

7. Which of these would conduct electricity?
C6H12O6(aq) or Pb(NO3)2(aq)
Pb(NO3)2(aq)ionic

8. Give the name or formula (hint: decide if it is ionic or covalent)
C3H8
(covalent) Tricarbon octahydride

9. Give the name or formula (hint: decide if it is ionic or covalent)
CoO
(ionic) cobalt (II) oxide

10. Give the name or formula (hint: decide if it is ionic or covalent)
Cobalt (III) nitrate
(ionic) Co(NO3)3

11. Give the name or formula (hint: decide if it is ionic or covalent)
Phosphorous pentabromide
(covalent) PBr5

12. Give the name or formula (hint: decide if it is ionic or covalent)
MnCr2O7
(ionic) manganese (II) dichromate

13. Give the name or formula (hint: decide if it is ionic or covalent)
Aluminum sulfide
(ionic) Al2S3

14. How many electrons were transferred in this compound?
Aluminum sulfide
6 (three from each aluminum, two given to each sulfur)

15. How many electrons were transferred in this compound?
Magnesium bromide
2 (two from magnesium, one to each bromine)

16. How many electrons were transferred in this compound?
Carbon tetrahydride
0 (covalent compound, electrons are shared not transferred)