Chemistry Final Exam #1

Chem Final Exam Sample 1
Question 1 of 36 0.0/ 0.0 Points
The n = ________ principal shell is the lowest that may contain a d-subshell.

A. 4
B. 1
C. 3
D. 2
E. not enough information

Question 2 of 36 4.0/ 4.0 Points
Which of the following elements has the highest ionization energy?

A. Ca
B. Al
C. Cl
D. Ne
E. Ba

Question 3 of 36 4.0/ 4.0 Points
The principal quantum number (n):

A. specifies the principal shell of the orbital.
B. specifies the subshell of the orbital.
C. specifies the 3-D shape of the orbital.
D. specifies the maximum number of electrons.
E. none of the above

Question 4 of 36 4.0/ 4.0 Points
How many core electrons are in a chlorine atom?
A. 10
B. 7
C. 17
D. 1
E. none of the above

Part 2 of 12 - 12.0/ 16.0 Points
Question 5 of 36 4.0/ 4.0 Points
Lewis theory predicts that the formula for a compound between barium and sulfur is:

A. BaS3
B. Ba2S
C. BaS
D. BaS2
E. none of the above

Question 6 of 36 4.0/ 4.0 Points
What is the molecular geometry if you have 4 single bonds around the central atom?

A. bent
B. trigonal pyramidal
C. tetrahedral
D. linear
E. not enough information

Question 7 of 36 0.0/ 4.0 Points
Which substance listed below is a polar molecule?

A. NH41+
B. SiCl4
C. Cl2O
D. all of the compounds
E. none of the compounds

Question 8 of 36 4.0/ 4.0 Points
What is the molecular geometry of carbon dioxide?

A. linear
B. trigonal pyramidal
C. tetrahedral
D. bent
E. not enough information

Part 3 of 12 - 16.0/ 16.0 Points
Question 9 of 36 4.0/ 4.0 Points
The vapor pressure of water at 20.0°C is 17.5 mm Hg. If the pressure of a gas collected over water was measured to be 453.0 mm Hg. What is the pressure of the pure gas?

A. 0.573 atm
B. 0.619 atm
C. 0.0230 atm
D. 0.596 atm
E. none of the above