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Summer Review Self-Test

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 
__________ is the chemical symbol for elemental sodium.
a.
S
b.
W
c.
So
d.
Na
e.
Sn
 

 2. 
The symbol for the element potassium is __________.
a.
Pt
b.
P
c.
K
d.
S
e.
Ca
 

 3. 
The temperature of 25°C is __________ in Kelvins.
a.
103
b.
138
c.
166
d.
248
e.
298
 

 4. 
The freezing point of water at 1 atm pressure is __________.
a.
0°F
b.
0 K
c.
0°C
d.
–273°C
e.
–32°F
 

 5. 
1 kilogram = __________ milligrams
a.
1 ´ 10–6
b.
1,000
c.
10,000
d.
1,000,000
e.
none of the above
 

 6. 
"Absolute zero" refers to __________.
a.
0 Kelvin
b.
0° Fahrenheit
c.
0° Celsius
d.
°C + 9/5(°F – 32)
e.
273.15°C
 

 7. 
The density (in g/cm3) of a gold nugget that has a volume of 1.68 cm3 and a mass of 32.4 g is __________.
a.
0.0519
b.
19.3
c.
54.4
d.
0.0184
e.
32.4
 

 8. 
The number 0.00430 has __________ significant figures.
a.
2
b.
3
c.
5
d.
6
e.
4
 

 9. 
The correct result  (indicating the proper number of significant figures) of the following addition is __________.

12
1.2
0.12
+  0.012
a.
13
b.
13.3
c.
13.33
d.
13.332
e.
none of the above
 

 10. 
There should be __________ significant figures in the answer to the following computation.

mc010-1.jpg
a.
1
b.
2
c.
3
d.
4
e.
5
 

 11. 
Which one of the following is a pure substance?
a.
concrete
b.
wood
c.
salt water
d.
elemental copper
e.
milk
 

 12. 
Gases and liquids share the property of __________.
a.
compressibility
b.
definite volume
c.
incompressibility
d.
indefinite shape
e.
definite shape
 

 13. 
A certain mass of carbon reacts with 13.6 g of oxygen to form carbon monoxide. __________ grams of oxygen would react with that same mass of carbon to form carbon dioxide, according to the law of multiple proportions?
a.
25.6
b.
6.8
c.
13.6
d.
136
e.
27.2
 

 14. 
Which statement below correctly describes the responses of alpha, beta, and gamma radiation to an electric field?
a.
Both beta and gamma are deflected in the same direction, while alpha shows no response.
b.
Both alpha and gamma are deflected in the same direction, while beta shows no response.
c.
Both alpha and beta are deflected in the same direction, while gamma shows no response.
d.
Alpha and beta are deflected in opposite directions, while gamma shows no response.
e.
Only alpha is deflected, while beta and gamma show no response.
 

 15. 
__________ and __________ reside in the atomic nucleus.
a.
Protons, electrons
b.
Electrons, neutrons
c.
Protons, neutrons
d.
none of the above
e.
Neutrons, only neutrons
 

 16. 
Which pair of atoms constitutes a pair of isotopes of the same element?
a.
mc016-1.jpg
b.
mc016-2.jpg
c.
mc016-3.jpg
d.
mc016-4.jpg
e.
mc016-5.jpg
 

 17. 
The element __________ is the most similar to strontium in chemical and physical properties.
a.
Li
b.
At
c.
Rb
d.
Ba
e.
Cs
 

 18. 
The empirical formula of a compound with molecules containing 12 carbon atoms, 14 hydrogen atoms, and 6 oxygen atoms is __________.
a.
C12H14O6
b.
CHO
c.
CH2O
d.
C6H7O3
e.
C2H4O
 

 19. 
What is the formula of the compound formed between strontium ions and nitrogen ions?
a.
SrN
b.
Sr3N2
c.
Sr2N3
d.
SrN2
e.
SrN3
 

 20. 
Magnesium reacts with a certain element to form a compound with the general formula MgX.  What would the most likely formula be for the compound formed between potassium and element X?
a.
K2X
b.
KX2
c.
K2X3
d.
K2X2
e.
KX
 

 21. 
The correct name for K2S is __________.
a.
potassium sulfate
b.
potassium disulfide
c.
potassium bisulfide
d.
potassium sulfide
e.
dipotassium sulfate
 

 22. 
The correct name for Al2O3 is __________.
a.
aluminum oxide
b.
dialuminum oxide
c.
dialuminum trioxide
d.
aluminum hydroxide
e.
aluminum trioxide
 

 23. 
The correct name for SO is __________.
a.
sulfur oxide
b.
sulfur monoxide
c.
sulfoxide
d.
sulfate
e.
sulfite
 

 24. 
The formula of ammonium carbonate is __________.
a.
(NH4)2CO3
b.
NH4CO2
c.
(NH3)2CO4
d.
(NH3)2CO3
e.
N2(CO3)3
 

 25. 
The correct name for Mg(ClO3)2 is __________.
a.
magnesium chlorate
b.
manganese chlorate
c.
magnesium chloroxide
d.
magnesium perchlorate
e.
manganese perchlorate
 

 26. 
Chromium and chlorine form an ionic compound whose formula is CrCl3.  The name of this compound is __________.
a.
chromium chlorine
b.
chromium(III) chloride
c.
monochromium trichloride
d.
chromium(III) trichloride
e.
chromic trichloride
 

 27. 
When the following equation is balanced, the coefficients are __________. 

NH3 (g) +  O2 (g) ® NO2 (g) +  H2O  (g)
a.
1, 1, 1, 1
b.
4, 7, 4, 6
c.
2, 3, 2, 3
d.
1, 3, 1, 2
e.
4, 3, 4, 3
 

 28. 
When the following equation is balanced, the coefficient of H2S is __________.

FeCl3 (aq)  +  H2S (g) ® Fe2S3 (s) +  HCl (aq)
a.
1
b.
2
c.
3
d.
5
e.
4
 

 29. 
How many grams of hydrogen are in 46 g of CH4O?
a.
5.8
b.
1.5
c.
2.8
d.
0.36
e.
184
 

 30. 
A 22.5-g sample of ammonium carbonate contains __________ mol of ammonium ions.
a.
0.468
b.
0.288
c.
0.234
d.
2.14
e.
3.47
 

 31. 
What is the empirical formula of a compound that contains 27.0% S, 13.4% O, and 59.6% Cl by mass?
a.
SOCl
b.
SOCl2
c.
S2OCl
d.
SO2Cl
e.
ClSO4
 

 32. 
Magnesium and nitrogen react in a combination reaction to produce magnesium nitride:

3 Mg  +  N2 ® Mg3N2

In a particular experiment, a 9.27-g sample of N2 reacts completely. The mass of Mg consumed is __________ g.
a.
8.04
b.
24.1
c.
16.1
d.
0.92
e.
13.9
 

 33. 
The combustion of ammonia in the presence of excess oxygen yields NO2 and H2O:

4 NH3 (g)  +  7 O2 (g) ® 4 NO2 (g)  +  6 H2O (g)

The combustion of 28.8 g of ammonia consumes __________ g of oxygen.
a.
94.7
b.
54.1
c.
108
d.
15.3
e.
28.8
 

 34. 
The combustion of propane (C3H8) produces CO2 and H2O:

C3H8 (g)  +  5O2 (g) ® 3CO2 (g)  +  4H2O  (g)

The reaction of 2.5 mol of O2 will produce __________ mol of H2O.
a.
4.0
b.
3.0
c.
2.5
d.
2.0
e.
1.0
 

 35. 
Lead (II) carbonate decomposes to give lead (II) oxide and carbon dioxide:

PbCO3 (s) ® PbO (s)  +  CO2 (g)

How many grams of lead (II) oxide will be produced by the decomposition of 2.50 g of lead (II) carbonate?
a.
0.41
b.
2.50
c.
0.00936
d.
2.09
e.
2.61
 



 
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