1. Determine the Bond Type (Electronegativities)
Sodium and Sulfur
Chlorine and Oxygen
Phosphorus and Copper
Oxygen and Oxygen
Bromine and Calcium
Hydrogen and Nitrogen

2. Answers Na (0.9) and S (2.5): 1.6 difference  polar covalent
Cl (3.16) and O (3.44):
0.28 difference  non-polar covalent
P (2.1) and Cu (1.9):
0.2 difference  non-polar covalent

3. Answers O (3.5) and O (3.5): 0.0 difference  non-polar covalent
Br (2.8) and Ca (1.0):
1.8 difference  ionic
H (2.1) and N (3.0):
0.9 difference  polar covalent

4. Write the formula for the following covalent compounds.
Carbon Dioxide
Carbon Monoxide
Tetratitanium Heptaiodide
Disodium Monosulfide
Silver Nonachloride

5. Answers Carbon Dioxide: CO2 Carbon Monoxide: CO
Tetratitanium Heptaiodide: Ti4I7
Disodium Monosulfide: Na2S
Silver Nonachloride: AgCl9

6. Write the prefixes (1 through 10) that you would use for covalent compound names.

7. One = mono
Six = hexa
Two = di
Seven = hepta
Three = tri
Eight = Octa
Four = tetra
Nine = nona
Five = penta
Ten = deca

8. Write the name for each covalent formula below.
N2O3 NO
S2O3
P4O10

9. Answers N2O3 = dinitrogen trioxide NO = nitrogen monoxide
S2O3 = disulfur trioxide
P4O10 = tetraphosphorous decoxide

10. Write formulas for the ionic compounds formed by the following ions.
Potassium and iodide
Magnesium and chloride
Aluminum and bromide
Cesium and nitride

11. Answers
Potassium and iodide = KI
Magnesium and chloride = MgCl2
Aluminum and bromide = AlBr3
Cesium and nitride = Cs3N

12. Write names for the following acid formulas.
Hydrochloric acid
Chloric acid
Sulfuric acid
Sulfurous acid
Hydrobromic acid

13. Answers Hydrochloric acid = HCl Chloric acid = HClO3
Sulfuric acid = H2SO4
Sulfurous acid = H2SO3
Hydrobromic acid = HBr

14. Write the acid name for the following formulas.
HClO2
H3PO4
H2Se
HNO3
H3N

15. Answers HClO2 = chlorous acid H3PO4 = phosphoric acid
H2Se = hydroselenic acid
HNO3 = nitric acid
H3N = hydronitric acid

16. Name the following compounds
NaBr
CaCl2
KOH
Cu(NO3)2
Ag2CrO4
NH4ClO4

17. Answers
NaBr = sodium bromide
CaCl2 = calcium chloride
KOH = Potassium hydroxide
Cu(NO3)2 = Copper (II) nitrate
Ag2CrO4 = Silver (I) chromate
NH4ClO4 = Ammonium perchlorate

18. Fill in the blanks in the table.
Cation
Anion
Name
Formula
Ammonium sulfate
PbF2
Lithium bromide
Na2CO3
Mg2+
PO43-

19. Answers NH41+ SO42- Ammonium sulfate (NH4)2SO4 Pb2+ F1-
Cation
Anion
Name
Formula
NH41+
SO42-
Ammonium sulfate
(NH4)2SO4
Pb2+
F1-
Lead (II) fluoride
PbF2
Li1+
Br1-
Lithium bromide
LiBr
Na1+
CO32-
Sodium carbonate
Na2CO3
Mg2+
PO43-
Magnesium phosphate
Mg3(PO4)2

20. Quiz Tomorrow Ionic Names/Formulas Covalent Names/Formulas
Acids Names/Formulas
Bond determination using electronegativity

21. Intermolecular Forces
If simple, diatomic molecules composed of the previously mentioned bonds were in a solution, what type of intermolecular forces would lead them to attract to each other?
Sodium and Sulfur
Chlorine and Oxygen
Phosphorus and Copper
Oxygen and Oxygen
Bromine and Calcium
Hydrogen and Nitrogen

22. Intermolecular Forces
Sodium and Sulfur  polar covalent  dipole forces
Chlorine and Oxygen  polar covalent  dipole forces
Phosphorus and Copper  non-polar covalent  london forces

23. Intermolecular Forces
Oxygen and Oxygen  non-polar covalent  london forces
Bromine and Calcium  ionic  ionic bond
Hydrogen and Nitrogen  polar covalent  hydrogen bonds (type of dipole force, hydrogen interacting with F, N, or O)