CHEM 1001 Answers                                Name: ____________________

 

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           ___Ionic_____             4.    Cu-Fe    ___metallic______

 

2.         Mg-O           ___Ionic_____              5.    Si-S      ____covalent______

 

3.         S-O              ___covalent______

 

See your Corwin textbook Section 12.1. Work Problems 6-10 p 336 for similar exercises

 

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       __carbon monoxide______

 

2.    SO3     ___sulfur trioxide________

 

3.    N2O5   ___dinitrogen pentoxide___

 

4.    CCl4   ___Carbon tetrachloride___

 

5.    CO2   ___Carbon Monoxide______

 

6.    Phosphorus trichloride          __PCl3___

 

7.    Boron trifluoride                     __BF3___

 

8.    Dihydrogen monoxide           __H2O____

 

9.    Dihydrogen Dioxide              __H2O2____

 

10.  Nitrogen trihydride                __NH3____

 

In your Corwin textbook see Section 7.7. Similar problems on p189 #43-46

 

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

 

 

 

Module Three: Part D       Binary Ionic Compounds             10 points

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

 

1.   Copper II phosphide                __Cu3P2_______

 

2.    Iron III Oxide                           ___Fe2O3______

 

3.    Lead IV sulfide                        __PbS2_______

 

4.    Zinc II Nitride                           __Zn3N2___

 

5.   Sodium Chloride                       __NaCl____

 

6.   MgCl2        __Magnesium chloride____(no Roman Numeral needed)

 

7.    NiF2         ___Nickel II fluoride_or__Nickel (II) fluoride____

 

8.    KBr          ___Potassium Bromide_____

 

9.    CaI2       ____Calcium Iodide_________

 

10.  SnF2     _____Tin II Fluoride__or__ Tin (II) Fluoride_____

 

 

In your Corwin textbook see sections 7.4 and 7.5.

 Work problems 23-32 on pages 188-189 for similar exercises.

 

Online Homework:

D: Binary Ionic Compound Homework: http://www.lsua.us/chem1001/nomenclature/BinarySalts/BinaryIonic.html

D1. Binary Ionic Formulas:

http://www.fccj.us/nomenclature/BinaryIonicFormula/BinaryIonicFormula.html