Name_____________________                           Date_______________

Homework science III: Covalent Compounds

HW #5

1.Describe the difference in the movement of valence electrons between atoms that undergo ionic bonding  to those undergoing covalent bonding?

 

2. What is a molecule? How does it differ from an ion?

 

3. What is a diatomic molecule? Give an example.

 

Naming Covalent Compounds:

4. Prefixes representing the number of atoms in the molecule.

1 atom ___________            2 atoms__________      3 atoms__________      4 atoms__________

 

5. Rules for naming covalent compounds:

1.)    _____________________________________________________

2.)    _____________________________________________________

3.)    _____________________________________________________

4.)    _____________________________________________________

 

Part II Practice: Write the name for the following covalent compounds :

Ex.1  SO2 = (0ne Sulfur and 2 oxygen atoms) answer  Sulfur Dioxide

Ex.2  S3O = (three Sulfur and 1 oxygen atoms) answer  Tri sulfur monoxide

 


  1. N2O3  __________________
  2. P3O ___________________
  3. N2Cl3___________________
  4. CCl4__________________
  5. NO3__________________
  6. CO__________________
  7. CF4__________________
  8. S2O3__________________
  9. N2O__________________
  10. P2O3__________________

Write the Chemical Formula for the following covalent compounds

 

Ex 3. Tetracarbon monoxide  ( 3 carbon, one oxygen) = C4O

 

11. Trisulfur tetraoxide _____________

12. Sulfur monochloride  ___________

13. Carbon Tetrabromide___________

14. Dinitrogen monosulfide  _________

15. Nitrogen  dioxide ________________