CHM 1025C         Module Four Sample Exam

Module Four: Part A: Bond Recognition                                      5 points

Using a periodic chart, classify each element in the pair as a metal or nonmetal, then predict the bond type that should exist between the two elements. (Assume all metal-nonmetal combinations have an electronegativity difference greater than 1.7)

 

1.         Na-Cl           ________________            

 

2.         Mg-O           ________________             

 

3.         S-O              ________________

 

4.    Cu-Fe               ________________

 

5.    Si-S                  ________________

 

Module Four: Part C    Binary Molecular Compounds      10 points

Using a periodic chart write the names or formulas of the following compounds depending on whether the formula or name is given:

 

1.    CO       _____________________

 

2.    SO3     _____________________

 

3.    N2O5   _____________________

 

4.    N2O7   _____________________

 

5.    N2O     _____________________

 

6.    Phosphorus pentachloride     _________

 

7.    Boron trifluoride                     _________

 

8.    Carbon dioxide                      _________

 

9.    Sulfur Trioxide                       _________

 

10.  Carbon Tetrachloride            _________

 

Online Homework:

C: Binary Molecular (Covalent) Homework: http://www.fccj.us/Nomenclature/Molecules/binaryCovalent.html 

C1. Binary Molecular (Covalent) Formulas: http://www.fccj.us/Nomenclature/MoleculeFormula/BinaryMolecularFormula.html