Name: 
 

Practice Test 3B



Multiple Choice
 

 1. 

How many valence electrons are present in an atom with the following electron configuration?

1s2 2s2 2p6 3s2 3p6 4s2 3d5
A)
5
B)
7
C)
3
D)
2
 

 2. 

What is the energy of one photon of green light with a wavelength of 5200 A° ?
A)
3.4x10 –30 J
B)
3.8x10 –19 J
C)
3.8x10 –29 J
D)
3.4x10 –40 J
 

 3. 

505 J of heat are added to 11.3 g of water at 28.3 °C.  What is the final temperature of water? (Specific heat of water = 4.18 J/g °C)
A)
17.6 °C
B)
47.2 °C
C)
39.0 °C
D)
32.8 °C
 

 4. 

What is mc004-1.jpg for the reaction shown below:
mc004-2.jpg
given the following data:
mc004-3.jpg
A)
39.7 kJ
B)
24.3 kJ
C)
–207.1 kJ
D)
207.1 kJ
 

 5. 

Chemist’s favorite station, KMOL, broadcasts at 99.1 MHz.  What is the wavelength of these waves?
A)
5.33x102 m
B)
0.330 m
C)
1.88x10–2 m
D)
3.03 m
 

 6. 

Which of the following atoms has the smallest atomic radius?
A)
Na
B)
B
C)
O
D)
P
 

 7. 

Which of the following elements is paramagnetic?
A)
Zn
B)
Sr
C)
Kr
D)
Na
 

 8. 

500 mL of 1.0 M NaOH are added to 500 mL of 1.0 M HCl in a Styrofoam cup and the rise in temperature measured as mc008-1.jpg.  The experiment is repeated using 100 mL of each solution and the rise in temperature is measured as mc008-2.jpg.  Which of the following statements about mc008-3.jpg is correct?
A)
mc008-4.jpg is five times as large as mc008-5.jpg
B)
mc008-6.jpg is five times as large as mc008-7.jpg
C)
mc008-8.jpg is equal to mc008-9.jpg
D)
No clear statement can be made about mc008-10.jpg and  mc008-11.jpg
 

 9. 

What mass of iron is formed when 725 kJ of heat are released according to the reaction shown below:

2 Al (s) + Fe2O3 (s)  mc009-1.jpg 2 Fe (s) + Al2O3 (s)              mc009-2.jpg = –850 kJ
A)
130 g
B)
95 g
C)
65 g
D)
47 g
 

 10. 

What are the possible number of orbitals in the shell with n= 6?
A)
16
B)
4
C)
13
D)
36
 

 11. 

Which of the following properties, in general, increase as we move left to right across a period in the periodic table?

I)  atomic radius   
II)  ionization energy
III) electron affinity  
IV) metallic character
A)
II and III
B)
III and IV
C)
II only
D)
I only
 

 12. 

What is the maximum number of electrons that the 7th energy level can accomodate?
A)
8
B)
32
C)
49
D)
98
 

 13. 

Which of the following orbitals is the lowest in energy?
A)
6s
B)
5p
C)
5d
D)
4f
 

 14. 

Which of the following correctly lists the elements in order of decreasing IE1?
A)
He > Na > Cl > Ca
B)
He > Na > Ca > Cl
C)
He > Cl > Ca > Na
D)
Ca > Cl > Na > He
 

 15. 

The possible values for the magnetic quantum number (ml) for a 5d electron are
A)
2, 1, 0, –1, –2
B)
3, 2, 1, 0, –1, –2, –3
C)
1, 2, 3, 4
D)
0, 1, 2, 3
 



 
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