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

 2. 
Which of the following is true about the composition of ionic compounds?
a.
They are composed of cations only.
b.
They are formed from two or more nonmetallic elements.
c.
They are composed of anions and cations.
d.
They are composed of anions only.
 

 3. 
What is the formula unit of aluminum oxide?
a.
AlOmc003-1.jpg
b.
AlO
c.
Almc003-2.jpgOmc003-3.jpg
d.
Almc003-4.jpgO
 

 4. 
Which of the following atoms in a covalent bond with Silicon forms the most polar molecule?
a.
S
b.
O
c.
N
d.
F
 

 5. 
When a metal reacts with a nonmetals, the metal tends to -
a.
gain electrons and from an anion
c.
gain protons and form an anion
b.
lose electrons and form a cation
d.
lose protons and form a cation
 

 6. 
How many electrons does barium have to give up to achieve a noble-gas electron configuration?
a.
1
b.
3
c.
2
d.
4
 

 7. 
In which of the following is the number of neutrons correctly represented?
a.
mc007-1.jpgU has 146 neutrons.
b.
mc007-2.jpgMg has 24 neutrons.
c.
mc007-3.jpgF has 0 neutrons.
d.
mc007-4.jpgAs has 108 neutrons.
 

 8. 
As wavelength increases, what happens to Frequency and Energy?
a.
Both Decrease
c.
Frequency decreases, Energy increases
b.
Both Increase
d.
Frequency increases, Energy decreases
 

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

 10. 

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

 11. 
Which of the following elements forms an ion with a 1– charge?
a.
sodium
b.
hydrogen
c.
fluorine
d.
potassium
 

 12. 
How many valence electrons does a helium atom have?
a.
5
b.
3
c.
2
d.
4
 

 13. 
Which of the following elements can form diatomic molecules held together by triple covalent bonds?
a.
phosphorus
b.
sulfur
c.
Iron
d.
carbon
 

 14. 
Which of the following would complete an ionic bond with Calcium (Ca)?
a.
Ga
c.
O
b.
Fe
d.
K
 

 15. 
Which of the following is a correct Lewis Dot structure for potassium chloride?
a.
mc015-1.jpg
b.
mc015-2.jpg
c.
mc015-3.jpg
d.
mc015-4.jpg
 

 16. 
Which of the following factors contributes to the increase in ionization energy from left to right across a period?
a.
an increase in the size of the nucleus
b.
an increase in the shielding effect
c.
an increase in the number of protons
d.
fewer electrons in the highest occupied energy level
 

 17. 
Which of the folloiwng shows a correct Lewis dot structure for the corresponding element?
a.
mc017-1.jpg
c.
mc017-3.jpg
b.
mc017-2.jpg
d.
mc017-4.jpg
 

 18. 
Which of the following best describes Ca+2?
a.
Ca+2 is a cation because it has gained 2 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 an anion because it has gained two electrons
 

 19. 
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.
heterogenous mixture
b.
homogenous mixture
d.
pure substance
 

 20. 
When C forms a bond with F this bond is called a polar covalent bond because
a.
the electrons are equally shared.
b.
it forms an especially strong bond.
c.
the carbon attracts the electrons closer to it’s nucleus.
d.
both bonding electrons are attracted closer tot he Fluorine atom.
 

 21. 
Which of the following is a possible compound formed from Cu+3 and NO3-1?
a.
Cu(NO)
c.
Cu2(NO3)
b.
Cu3(NO2)
d.
Cu(NO3)3
 

 22. 
Which of the following formulas represents an ionic compound?
a.
PClmc022-1.jpg
b.
Nmc022-2.jpgOmc022-3.jpg
c.
CSmc022-4.jpg
d.
BaImc022-5.jpg
 

 23. 
A sodium atom (Na) and a sodium ion (Na+) must have the same number of -
a.
electrons
c.
Both protons and electrons
b.
None of the above
d.
protons
 

 24. 
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 gain electrons and one element loses electrons while becoming charged.
c.
Two atoms share two electrons.
d.
One atom completely loses two electrons to the other atom in the bond.
 

 25. 
Choose the correct Lewis Dot Diagram for NaCl
a.
mc025-1.jpg
b.
mc025-2.jpg
c.
mc025-3.jpg
d.
mc025-4.jpg
 

 26. 
In which of the following is the name and formula given correctly?
a.
tin (IV) fluoride, SnFmc026-1.jpg
b.
cobaltous chloride, CoClmc026-2.jpg
c.
sodium oxide, NaO
d.
barium nitride, BaN
 

 27. 
When Group 2A elements form ions, they
a.
gain two electrons.
b.
gain two protons.
c.
lose two electrons.
d.
lose two protons.
 

 28. 
Which of the following correctly provides the names and formulas of polyatomic ions?
a.
chromate: CrOmc028-1.jpgmc028-2.jpg; dichromate: Crmc028-3.jpgOmc028-4.jpgmc028-5.jpg
b.
carbonate: HCOmc028-6.jpgmc028-7.jpg; bicarbonate: COmc028-8.jpgmc028-9.jpg
c.
sulfite: Smc028-10.jpg; sulfate: SOmc028-11.jpgmc028-12.jpg
d.
nitrite: NOmc028-13.jpg; nitrate: NOmc028-14.jpgmc028-15.jpg
 

 29. 
An example of an extensive property of matter is
a.
pressure.
b.
temperature.
c.
hardness.
d.
mass.
 

 30. 
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 10-6 Hz
d.
4.57 x 1014 Hz
 

 31. 
Which of the following is the correct name for Nmc031-1.jpgOmc031-2.jpg?
a.
nitrous oxide
b.
nitrogen dioxide
c.
nitrate oxide
d.
dinitrogen pentoxide
 

 32. 
Which set of chemical name and chemical formula for the same compound is correct?
a.
tin(IV) bromide, SnBrmc032-1.jpg
b.
iron(II) oxide, Femc032-2.jpgOmc032-3.jpg
c.
aluminum fluorate, AlFmc032-4.jpg
d.
potassium chloride, Kmc032-5.jpgClmc032-6.jpg
 

 33. 
How many valence electrons are in a silicon atom?
a.
8
b.
4
c.
2
d.
6
 

 34. 
Which of the following correctly provides the name of the element, the symbol for the ion, and the name of the ion?
a.
fluorine, Fmc034-1.jpg, fluoride ion
b.
zinc, Znmc034-2.jpg, zincate ion
c.
sulfur, Smc034-3.jpg, sulfide ion
d.
copper, Cumc034-4.jpg, carbonous ion
 

 35. 
How are chemical formulas of  ionic compounds generally written?
a.
subscripts first, then ions
b.
anion on left, cation on right
c.
cation on left, anion on right
d.
Roman numeral first, then anion, then cation
 

 36. 
What is the correct formula for barium chlorate?
a.
Ba(ClOmc036-1.jpg)mc036-2.jpg
b.
Ba(ClOmc036-3.jpg)mc036-4.jpg
c.
BaClmc036-5.jpg
d.
BaClO
 

 37. 
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 anion is -3
b.
The charge of the cation is +3
d.
The charge of the cation is +2
 

 38. 
Why do atoms share electrons in covalent bonds?
a.
to become ions and attract each other
b.
to attain a full valence energy level and become stable
c.
to increase their atomic numbers
d.
to become more polar
 

 39. 
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
 

 40. 
Which of the following diatomic molecules is joined by a double covalent bond?
a.
mc040-1.jpg
b.
mc040-2.jpg
c.
mc040-3.jpg
d.
mc040-4.jpg
 

 41. 
Experimental evidence suggests that the bond angles between the Nitrogen and Hydrogens in methane, NHmc041-1.jpg, are ____.
a.
120mc041-2.jpg
b.
109.5mc041-3.jpg
c.
180mc041-4.jpg
d.
90mc041-5.jpg
 

 42. 
What causes NH3 to have it’s shape, according to VSEPR theory?
a.
ionic attraction and repulsion
b.
repulsive forces between unshared pairs of electrons and bonds
c.
interaction between the fixed orbitals of the unshared pairs of hydrogen
d.
the unusual location of the free electrons
 



 
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