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

 2. 
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.
1.97 x 1014 Hz
c.
4.57 x 10-6 Hz
b.
4.57 x 1014 Hz
d.
4.57 x 10-7 Hz
 

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

 4. 
Which of the following correctly provides the names and formulas of polyatomic ions?
a.
chromate: CrOmc004-1.jpgmc004-2.jpg; dichromate: Crmc004-3.jpgOmc004-4.jpgmc004-5.jpg
b.
sulfite: Smc004-6.jpg; sulfate: SOmc004-7.jpgmc004-8.jpg
c.
carbonate: HCOmc004-9.jpgmc004-10.jpg; bicarbonate: COmc004-11.jpgmc004-12.jpg
d.
nitrite: NOmc004-13.jpg; nitrate: NOmc004-14.jpgmc004-15.jpg
 

 5. 
Which of the following correctly provides the name of the element, the symbol for the ion, and the name of the ion?
a.
fluorine, Fmc005-1.jpg, fluoride ion
b.
copper, Cumc005-2.jpg, carbonous ion
c.
zinc, Znmc005-3.jpg, zincate ion
d.
sulfur, Smc005-4.jpg, sulfide ion
 

 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 cation is +2
d.
The charge of the anion is -2
 

 7. 
Which of the following best describes Ca+2?
a.
Ca+2 is an anion because it has gained two electrons
c.
Ca+2 is a cation because it has lost two electrons
b.
Ca+2 is an anion because it has lost two electrons
d.
Ca+2 is a cation because it has gained 2 electrons
 

 8. 
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.
heterogenous mixture
c.
homogenous mixture
b.
an element
d.
pure substance
 

 9. 
How do atoms achieve full valence energy levels in single covalent bonds?
a.
Two atoms transfer electrons in a sea of mobile electrons
b.
Two atoms share two electrons.
c.
Two atoms gain electrons and one element loses electrons while becoming charged.
d.
One atom completely loses two electrons to the other atom in the bond.
 

 10. 
In which of the following is the number of neutrons correctly represented?
a.
mc010-1.jpgU has 146 neutrons.
b.
mc010-2.jpgAs has 108 neutrons.
c.
mc010-3.jpgMg has 24 neutrons.
d.
mc010-4.jpgF has 0 neutrons.
 

 11. 
Which of the following formulas represents an ionic compound?
a.
Nmc011-1.jpgOmc011-2.jpg
b.
BaImc011-3.jpg
c.
PClmc011-4.jpg
d.
CSmc011-5.jpg
 

 12. 
Choose the correct Lewis Dot Diagram for NaCl
a.
mc012-1.jpg
b.
mc012-2.jpg
c.
mc012-3.jpg
d.
mc012-4.jpg
 

 13. 
How many valence electrons are in a silicon atom?
a.
2
b.
6
c.
8
d.
4
 

 14. 
What causes NH3 to have it’s shape, according to VSEPR theory?
a.
interaction between the fixed orbitals of the unshared pairs of hydrogen
b.
repulsive forces between unshared pairs of electrons and bonds
c.
the unusual location of the free electrons
d.
ionic attraction and repulsion
 

 15. 
When Group 2A elements form ions, they
a.
lose two electrons.
b.
gain two electrons.
c.
gain two protons.
d.
lose two protons.
 

 16. 
In which of the following is the name and formula given correctly?
a.
cobaltous chloride, CoClmc016-1.jpg
b.
barium nitride, BaN
c.
tin (IV) fluoride, SnFmc016-2.jpg
d.
sodium oxide, NaO
 

 17. 
Which of the following is a correct Lewis Dot structure for potassium chloride?
a.
mc017-1.jpg
b.
mc017-2.jpg
c.
mc017-3.jpg
d.
mc017-4.jpg
 

 18. 
Which of the following compounds is NOT an ionic compound?
a.
Li(NO3)
c.
CO2
b.
MgBr2
d.
NaCl
 

 19. 
Which of the folloiwng shows a correct Lewis dot structure for the corresponding element?
a.
mc019-1.jpg
c.
mc019-3.jpg
b.
mc019-2.jpg
d.
mc019-4.jpg
 

 20. 
Which of the following is the correct name for Nmc020-1.jpgOmc020-2.jpg?
a.
nitrous oxide
b.
dinitrogen pentoxide
c.
nitrogen dioxide
d.
nitrate oxide
 

 21. 
What is the correct formula for barium chlorate?
a.
BaClmc021-1.jpg
b.
Ba(ClOmc021-2.jpg)mc021-3.jpg
c.
Ba(ClOmc021-4.jpg)mc021-5.jpg
d.
BaClO
 

 22. 
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
 

 23. 
An example of an extensive property of matter is
a.
temperature.
b.
mass.
c.
pressure.
d.
hardness.
 

 24. 

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

 25. 
What is the formula unit of aluminum oxide?
a.
AlOmc025-1.jpg
b.
Almc025-2.jpgO
c.
Almc025-3.jpgOmc025-4.jpg
d.
AlO
 

 26. 
How many electrons does barium have to give up to achieve a noble-gas electron configuration?
a.
1
b.
3
c.
4
d.
2
 

 27. 
A sodium atom (Na) and a sodium ion (Na+) must have the same number of -
a.
protons
c.
Both protons and electrons
b.
None of the above
d.
electrons
 

 28. 
Which set of chemical name and chemical formula for the same compound is correct?
a.
potassium chloride, Kmc028-1.jpgClmc028-2.jpg
b.
aluminum fluorate, AlFmc028-3.jpg
c.
tin(IV) bromide, SnBrmc028-4.jpg
d.
iron(II) oxide, Femc028-5.jpgOmc028-6.jpg
 

 29. 
Which of the following is true about the composition of ionic compounds?
a.
They are composed of anions only.
b.
They are composed of cations only.
c.
They are formed from two or more nonmetallic elements.
d.
They are composed of anions and cations.
 

 30. 
As wavelength increases, what happens to Frequency and Energy?
a.
Frequency increases, Energy decreases
c.
Frequency decreases, Energy increases
b.
Both Decrease
d.
Both Increase
 

 31. 
How are chemical formulas of  ionic compounds generally written?
a.
cation on left, anion on right
b.
anion on left, cation on right
c.
Roman numeral first, then anion, then cation
d.
subscripts first, then ions
 

 32. 
Which of the following elements forms an ion with a 1– charge?
a.
fluorine
b.
potassium
c.
hydrogen
d.
sodium
 

 33. 
When a metal reacts with a nonmetals, the metal tends to -
a.
gain protons and form an anion
c.
gain electrons and from an anion
b.
lose electrons and form a cation
d.
lose protons and form a cation
 

 34. 
Why do atoms share electrons in covalent bonds?
a.
to increase their atomic numbers
b.
to become more polar
c.
to become ions and attract each other
d.
to attain a full valence energy level and become stable
 

 35. 
How many valence electrons does a helium atom have?
a.
4
b.
2
c.
3
d.
5
 



 
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