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