Chemistry 100                                                                                     Dunnivant

Exam 1                                                                                                Spring, 2005

 

Name (printed)  _____________________

 

Closed notes, closed book, closed Internet, closed neighbor!

 

I have neither given nor received aid on this exam.  __________________________

                                                                                                Signature

 

 

  1. (5 pts)  List five examples of physical properties.

 

                                    ____________________________

 

                                    ____________________________

 

                                    ____________________________

 

 

  1. (5 pts) Explain how diatomic oxygen can be dissolved in water using intermolecular forces.  Include in your explanation what intermolecular forces are involved.  Drawing may be helpful.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

  1. (2 pts)  Water has many unique chemical and physical properties.  What molecular property is responsible for this phenomenon?

 

 

 

 

 

 

  1. (5 pts)  Explain the difference between the terms ÒmoleculeÓ and ÒcompoundÓ?

 

 

 

 

 

 

 

 

 

 

 

  1. (3 pts each)  List the scientist responsible for the stated discovery or explain what the given scientist did:

 

                  Millikan:

 

 

 

 

                  ________:  found the charge to mass of an electron using cathode ray tubes

 

 

 

 

 

                  ________:  explained the line spectra of hydrogen (the specific wavelengths of light given off by excited hydrogen atoms.

 

 

 

                  Schrondinger:

 

 

 

 

 

                  Lavoisier:

 

 

 

 

 

          ____________:  discovered the proton; used the gold foil experiment to disprove the plum pudding model of atomic structure.

 

 

  1. (10 pts)  Using the blank spaces below, give the relative order of electromagnetic radiation from highest energy to lowest energy.

 

____________________              highest energy

 

 

____________________

 

 

____________________

 

 

____________________

 

 

____________________

 

 

____________________

 

 

____________________

 

 

____________________

 

 

____________________              lowest energy

 

 

 

 

  1. (5 pts)  YouÕre going to Europe, the land of the Celsius temperature scale.  The weather channel says it will be 5.00 degrees C where you are going.  What will the temperature be in degrees F?

 

 

 

 

 

 

 

  1. (10 pts)  Give the spectroscopic notation for:

 

 

Os             __________________________________________ (3 pts)

 

Si               __________________________________________ (3 pts)

What are the location of Si valence electrons?

                  __________________________ (4 pts)

 

 

  1. (2 pts each) Give the name or the chemical formula for the following:

 

OH-                                   ________________________

 

Cyanide ion                       ________________________

 

Nitrite ion                          ________________________

 

Sulfate ion                         ________________________

 

NO2-                                  ________________________

 

Potassium phosphate         ________________________

 

Carbonate ion                    ________________________

 

KNO3                                ________________________

 

Sodium bicarbonate           ________________________

 

NaCl                                  ________________________

 

 

 

  1. (5 pts each) Draw the Lewis dot structure and give the geometry for

 

 

CO2

 

 

 

 

 

 

 

 

 

 

 

ozone

 

 

 

 

 

 

 

 

 

N2