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Unit 5 Honors multiple choice Test

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

 1. 
A sodium atom (Na) and a sodium ion (Na+) must have the same number of -
a.
electrons
c.
None of the above
b.
Both protons and electrons
d.
protons
 

 2. 
Which of the following would complete an ionic bond with Calcium (Ca)?
a.
Fe
c.
Ga
b.
O
d.
K
 

 3. 
How many valence electrons are in a silicon atom?
a.
6
b.
4
c.
8
d.
2
 

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

 5. 
What causes NH3 to have it’s shape, according to VSEPR theory?
a.
the unusual location of the free electrons
b.
repulsive forces between unshared pairs of electrons and bonds
c.
interaction between the fixed orbitals of the unshared pairs of hydrogen
d.
ionic attraction and repulsion
 

 6. 
Which of the following diatomic molecules is joined by a double covalent bond?
a.
mc006-1.jpg
b.
mc006-2.jpg
c.
mc006-3.jpg
d.
mc006-4.jpg
 

 7. 
Which of the following is the correct name for Nmc007-1.jpgOmc007-2.jpg?
a.
nitrate oxide
b.
dinitrogen pentoxide
c.
nitrogen dioxide
d.
nitrous oxide
 

 8. 
How many valence electrons does a helium atom have?
a.
2
b.
4
c.
3
d.
5
 

 9. 
As wavelength increases, what happens to Frequency and Energy?
a.
Both Decrease
c.
Frequency increases, Energy decreases
b.
Both Increase
d.
Frequency decreases, Energy increases
 

 10. 
What is the formula unit of aluminum oxide?
a.
AlO
b.
AlOmc010-1.jpg
c.
Almc010-2.jpgOmc010-3.jpg
d.
Almc010-4.jpgO
 

 11. 
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.
pure substance
c.
an element
b.
homogenous mixture
d.
heterogenous mixture
 

 12. 
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 10-7 Hz
b.
4.57 x 1014 Hz
d.
4.57 x 10-6 Hz
 

 13. 
Which of the following correctly provides the names and formulas of polyatomic ions?
a.
carbonate: HCOmc013-1.jpgmc013-2.jpg; bicarbonate: COmc013-3.jpgmc013-4.jpg
b.
nitrite: NOmc013-5.jpg; nitrate: NOmc013-6.jpgmc013-7.jpg
c.
chromate: CrOmc013-8.jpgmc013-9.jpg; dichromate: Crmc013-10.jpgOmc013-11.jpgmc013-12.jpg
d.
sulfite: Smc013-13.jpg; sulfate: SOmc013-14.jpgmc013-15.jpg
 

 14. 
Which of the folloiwng shows a correct Lewis dot structure for the corresponding element?
a.
mc014-1.jpg
c.
mc014-3.jpg
b.
mc014-2.jpg
d.
mc014-4.jpg
 

 15. 
Experimental evidence suggests that the bond angles between the Nitrogen and Hydrogens in methane, NHmc015-1.jpg, are ____.
a.
120mc015-2.jpg
b.
109.5mc015-3.jpg
c.
90mc015-4.jpg
d.
180mc015-5.jpg
 

 16. 
Which of the following formulas represents an ionic compound?
a.
CSmc016-1.jpg
b.
PClmc016-2.jpg
c.
Nmc016-3.jpgOmc016-4.jpg
d.
BaImc016-5.jpg
 

 17. 
Which of the following correctly provides the name of the element, the symbol for the ion, and the name of the ion?
a.
sulfur, Smc017-1.jpg, sulfide ion
b.
copper, Cumc017-2.jpg, carbonous ion
c.
zinc, Znmc017-3.jpg, zincate ion
d.
fluorine, Fmc017-4.jpg, fluoride ion
 

 18. 
Which of the following is considered a physical property of a substance?
a.
reaction with an acid
b.
products of decomposition
c.
malleability
d.
ability to oxidize
 

 19. 
When a metal reacts with a nonmetals, the metal tends to -
a.
lose electrons and form a cation
c.
lose protons and form a cation
b.
gain protons and form an anion
d.
gain electrons and from an anion
 

 20. 
Which of the following is a possible compound formed from Cu+3 and NO3-1?
a.
Cu2(NO3)
c.
Cu3(NO2)
b.
Cu(NO)
d.
Cu(NO3)3
 

 21. 
Choose the correct Lewis Dot Diagram for NaCl
a.
mc021-1.jpg
b.
mc021-2.jpg
c.
mc021-3.jpg
d.
mc021-4.jpg
 

 22. 
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.
 

 23. 
Which of the following elements forms an ion with a 1– charge?
a.
sodium
b.
potassium
c.
hydrogen
d.
fluorine
 

 24. 
An example of an extensive property of matter is
a.
hardness.
b.
mass.
c.
temperature.
d.
pressure.
 

 25. 
When C forms a bond with F this bond is called a polar covalent bond because
a.
both bonding electrons are attracted closer tot he Fluorine atom.
b.
the carbon attracts the electrons closer to it’s nucleus.
c.
it forms an especially strong bond.
d.
the electrons are equally shared.
 

 26. 
Ionic compounds are normally in which physical state at room temperature?
a.
liquid
b.
solid
c.
gas
d.
plasma
 

 27. 
Which of the following factors contributes to the increase in ionization energy from left to right across a period?
a.
an increase in the number of protons
b.
fewer electrons in the highest occupied energy level
c.
an increase in the size of the nucleus
d.
an increase in the shielding effect
 

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

 29. 
Which of the following compounds is NOT an ionic compound?
a.
MgBr2
c.
CO2
b.
NaCl
d.
Li(NO3)
 

 30. 

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

 31. 
How do atoms achieve full valence energy levels in single covalent bonds?
a.
One atom completely loses two electrons to the other atom in the bond.
b.
Two atoms gain electrons and one element loses electrons while becoming charged.
c.
Two atoms transfer electrons in a sea of mobile electrons
d.
Two atoms share two electrons.
 

 32. 
In the following compound: Iron (III) oxide, what do the roman numerals indicate?
a.
The charge of the anion is -2
c.
The charge of the cation is +3
b.
The charge of the cation is +2
d.
The charge of the anion is -3
 

 33. 
Which of the following elements can form diatomic molecules held together by triple covalent bonds?
a.
phosphorus
b.
carbon
c.
Iron
d.
sulfur
 

 34. 
Which of the following atoms in a covalent bond with Silicon forms the most polar molecule?
a.
O
b.
F
c.
N
d.
S
 

 35. 
When Group 2A elements form ions, they
a.
lose two electrons.
b.
lose two protons.
c.
gain two electrons.
d.
gain two protons.
 

 36. 
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
 

 37. 
In which of the following is the name and formula given correctly?
a.
tin (IV) fluoride, SnFmc037-1.jpg
b.
cobaltous chloride, CoClmc037-2.jpg
c.
barium nitride, BaN
d.
sodium oxide, NaO
 

 38. 
Which of the following is a correct Lewis Dot structure for potassium chloride?
a.
mc038-1.jpg
b.
mc038-2.jpg
c.
mc038-3.jpg
d.
mc038-4.jpg
 

 39. 
Why do atoms share electrons in covalent bonds?
a.
to become more polar
b.
to become ions and attract each other
c.
to attain a full valence energy level and become stable
d.
to increase their atomic numbers
 

 40. 
What is the correct formula for barium chlorate?
a.
BaClmc040-1.jpg
b.
Ba(ClOmc040-2.jpg)mc040-3.jpg
c.
BaClO
d.
Ba(ClOmc040-4.jpg)mc040-5.jpg
 

 41. 
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
 

 42. 
In which of the following is the number of neutrons correctly represented?
a.
mc042-1.jpgMg has 24 neutrons.
b.
mc042-2.jpgU has 146 neutrons.
c.
mc042-3.jpgAs has 108 neutrons.
d.
mc042-4.jpgF has 0 neutrons.
 



 
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