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Unit 5 OnLevel  Mulitple choice Test

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

 1. 
Which of the following correctly provides the name of the element, the symbol for the ion, and the name of the ion?
a.
sulfur, Smc001-1.jpg, sulfide ion
b.
copper, Cumc001-2.jpg, carbonous ion
c.
zinc, Znmc001-3.jpg, zincate ion
d.
fluorine, Fmc001-4.jpg, fluoride ion
 

 2. 
Which of the folloiwng shows a correct Lewis dot structure for the corresponding element?
a.
mc002-1.jpg
c.
mc002-3.jpg
b.
mc002-2.jpg
d.
mc002-4.jpg
 

 3. 
How do atoms achieve full valence energy levels in single covalent bonds?
a.
Two atoms gain electrons and one element loses electrons while becoming charged.
b.
Two atoms transfer electrons in a sea of mobile electrons
c.
One atom completely loses two electrons to the other atom in the bond.
d.
Two atoms share two electrons.
 

 4. 
Why do atoms share electrons in covalent bonds?
a.
to become ions and attract each other
b.
to become more polar
c.
to increase their atomic numbers
d.
to attain a full valence energy level and become stable
 

 5. 
In which of the following is the name and formula given correctly?
a.
cobaltous chloride, CoClmc005-1.jpg
b.
barium nitride, BaN
c.
sodium oxide, NaO
d.
tin (IV) fluoride, SnFmc005-2.jpg
 

 6. 
In the following compound: Iron (III) oxide, what do the roman numerals indicate?
a.
The charge of the anion is -3
c.
The charge of the cation is +3
b.
The charge of the anion is -2
d.
The charge of the cation is +2
 

 7. 
As wavelength increases, what happens to Frequency and Energy?
a.
Both Decrease
c.
Both Increase
b.
Frequency decreases, Energy increases
d.
Frequency increases, Energy decreases
 

 8. 
How many electrons does barium have to give up to achieve a noble-gas electron configuration?
a.
3
b.
4
c.
1
d.
2
 

 9. 
Which of the following compounds is NOT an ionic compound?
a.
MgBr2
c.
NaCl
b.
CO2
d.
Li(NO3)
 

 10. 
Which of the following formulas represents an ionic compound?
a.
PClmc010-1.jpg
b.
CSmc010-2.jpg
c.
Nmc010-3.jpgOmc010-4.jpg
d.
BaImc010-5.jpg
 

 11. 
One of the wavelengths emitted by hydrogen atoms is
6.56 x 10-7 m. Calculate the frequency if the speed of light is 3.00 x 108 m/s..
a.
4.57 x 10-7 Hz
c.
4.57 x 1014 Hz
b.
4.57 x 10-6 Hz
d.
1.97 x 1014 Hz
 

 12. 
Which of the following best describes Ca+2?
a.
Ca+2 is a cation because it has gained 2 electrons
c.
Ca+2 is an anion because it has lost two electrons
b.
Ca+2 is a cation because it has lost two electrons
d.
Ca+2 is an anion because it has gained two electrons
 

 13. 
When Group 2A elements form ions, they
a.
gain two electrons.
b.
lose two protons.
c.
lose two electrons.
d.
gain two protons.
 

 14. 
How many valence electrons does a helium atom have?
a.
5
b.
3
c.
2
d.
4
 

 15. 
How many valence electrons are in a silicon atom?
a.
8
b.
6
c.
2
d.
4
 

 16. 
Which of the following elements forms an ion with a 1– charge?
a.
hydrogen
b.
sodium
c.
potassium
d.
fluorine
 

 17. 
Which of the following is true about the composition of ionic compounds?
a.
They are composed of anions and cations.
b.
They are composed of anions only.
c.
They are formed from two or more nonmetallic elements.
d.
They are composed of cations only.
 

 18. 
Which of the following correctly provides the names and formulas of polyatomic ions?
a.
nitrite: NOmc018-1.jpg; nitrate: NOmc018-2.jpgmc018-3.jpg
b.
carbonate: HCOmc018-4.jpgmc018-5.jpg; bicarbonate: COmc018-6.jpgmc018-7.jpg
c.
sulfite: Smc018-8.jpg; sulfate: SOmc018-9.jpgmc018-10.jpg
d.
chromate: CrOmc018-11.jpgmc018-12.jpg; dichromate: Crmc018-13.jpgOmc018-14.jpgmc018-15.jpg
 

 19. 
Which of the following is a correct Lewis Dot structure for potassium chloride?
a.
mc019-1.jpg
b.
mc019-2.jpg
c.
mc019-3.jpg
d.
mc019-4.jpg
 

 20. 
Which set of chemical name and chemical formula for the same compound is correct?
a.
tin(IV) bromide, SnBrmc020-1.jpg
b.
potassium chloride, Kmc020-2.jpgClmc020-3.jpg
c.
aluminum fluorate, AlFmc020-4.jpg
d.
iron(II) oxide, Femc020-5.jpgOmc020-6.jpg
 

 21. 
Brass is an alloy made of copper and zinc.  To make brass copper is mixed with zinc when both metals are at the liquid state.  During the mixing process no chemical reaction takes place. After mixing, brass appears to be uniform throughout.  Brass must be a(n):
a.
an element
c.
homogenous mixture
b.
pure substance
d.
heterogenous mixture
 

 22. 
Choose the correct Lewis Dot Diagram for NaCl
a.
mc022-1.jpg
b.
mc022-2.jpg
c.
mc022-3.jpg
d.
mc022-4.jpg
 

 23. 
Which of the following is a possible compound formed from Cu+3 and NO3-1?
a.
Cu(NO3)3
c.
Cu(NO)
b.
Cu2(NO3)
d.
Cu3(NO2)
 

 24. 
What causes NH3 to have it’s shape, according to VSEPR theory?
a.
repulsive forces between unshared pairs of electrons and bonds
b.
interaction between the fixed orbitals of the unshared pairs of hydrogen
c.
the unusual location of the free electrons
d.
ionic attraction and repulsion
 

 25. 
A sodium atom (Na) and a sodium ion (Na+) must have the same number of -
a.
Both protons and electrons
c.
protons
b.
None of the above
d.
electrons
 

 26. 
An example of an extensive property of matter is
a.
temperature.
b.
hardness.
c.
pressure.
d.
mass.
 

 27. 
What is the correct formula for barium chlorate?
a.
Ba(ClOmc027-1.jpg)mc027-2.jpg
b.
BaClO
c.
Ba(ClOmc027-3.jpg)mc027-4.jpg
d.
BaClmc027-5.jpg
 

 28. 
What is the formula unit of aluminum oxide?
a.
Almc028-1.jpgO
b.
AlOmc028-2.jpg
c.
AlO
d.
Almc028-3.jpgOmc028-4.jpg
 

 29. 
Which of the following would complete an ionic bond with Calcium (Ca)?
a.
Fe
c.
K
b.
Ga
d.
O
 

 30. 
How are chemical formulas of  ionic compounds generally written?
a.
cation on left, anion on right
b.
Roman numeral first, then anion, then cation
c.
subscripts first, then ions
d.
anion on left, cation on right
 

 31. 
In which of the following is the number of neutrons correctly represented?
a.
mc031-1.jpgAs has 108 neutrons.
b.
mc031-2.jpgF has 0 neutrons.
c.
mc031-3.jpgMg has 24 neutrons.
d.
mc031-4.jpgU has 146 neutrons.
 

 32. 

What does the 3 represent in the following electron configuration, 1s2 2s2 2p6 3s2 3p6?
a.
Energy level of electrons
c.
Orbitals
b.
Electrons
d.
Sublevel
 

 33. 
Which of the following is considered a physical property of a substance?
a.
reaction with an acid
b.
malleability
c.
products of decomposition
d.
ability to oxidize
 

 34. 
Which of the following is the correct name for Nmc034-1.jpgOmc034-2.jpg?
a.
dinitrogen pentoxide
b.
nitrate oxide
c.
nitrogen dioxide
d.
nitrous oxide
 

 35. 
When a metal reacts with a nonmetals, the metal tends to -
a.
gain protons and form an anion
c.
lose protons and form a cation
b.
lose electrons and form a cation
d.
gain electrons and from an anion
 



 
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