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Hydrocarbons (1797457)
Due:
Wed Jun 29 2011 03:30 PM EDT
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Question
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Instructions
Do not leave spaces when naming organic molecules. Example: 2,3-dimethylheptane
or 4-ethyl-2-fluoroheptane
1.
Question Details
GBEssGOB1 6.AE.058. [1219684]
Select two different conformations of C5H12.
c
d
e
f
g
c
d
e
f
g
c
d
e
f
g
c
d
e
f
g
c
d
e
f
g
2.
Question Details
GBEssGOB1 6.AE.060. [1219735]
What is the geometry of a carbon atom in the double bond of an alkene: tetrahedral, trigonal planar, or linear?
j tetrahedral
k
l
m
n
j
k
l
m
n
trigonal planar
j linear
k
l
m
n
3.
Question Details
GBEssGOB1 6.AE.062. [1219691]
http://www.webassign.net/v4cgikavallie@fiu/assignments/preview.tpl?g=2011062219051...
6/22/2011
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Write the structural formula of the two structural isomers of C4H10. Label the branched-chain and straight-chain structural
isomer.
branched-chain isomer
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
straight-chain isomer
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
4.
Question Details
GBEssGOB1 6.AE.071. [1219732]
Provide skeletal line structures for the following condensed formulas.
(a)
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
(b)
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1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
(c)
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
5.
Question Details
GBEssGOB1 6.AE.074. [1219716]
How many carbon atoms are there in the cycloalkane shown below?
9
How many hydrogen atoms are there on each carbon atom?
2
How is the number of hydrogen atoms in this cycloalkane different from the straight-chain hydrocarbon with the same
number of carbon atoms?
There are
2 ---Select---
6
more hydrogen atoms in the straight-chain hydrocarbon than in the
cycloalkane with the same number of carbon atoms.
6.
Question Details
GBEssGOB1 6.AE.077. [1219702]
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Write the geometric isomer of the compound shown below:
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
7.
Question Details
GBEssGOB1 6.AE.080. [1219699]
The structure of linoleic acid, found in plants and animals, is shown below.
Are the double bonds cis or trans?
j
k
l
m
n
cis
j trans
k
l
m
n
How can you tell?
j
k
l
m
n
The groups in the longest chain are on the same side of the double bond.
j The groups in the longest chain are on opposite sides of the double bond.
k
l
m
n
Would this compound be classified as a trans fat or is it the natural cis form of the fatty acid?
j The molecule shown is the (semi)synthetic trans version of the fatty acid.
k
l
m
n
j
k
l
m
n
8.
The molecule shown is the natural cis version of the fatty acid.
Question Details
GBEssGOB1 6.AE.086. [1220162]
Name the following branched-chain alkanes:
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(a)
2,2,5-trimethyloctane
(b)
4-ethyl-5-methyl-6-propylnonane
(c)
3-ethyl-4-methylheptane
9.
Question Details
GBEssGOB1 6.AE.088. [1219720]
Provide skeletal line structures for the IUPAC names below:
(a) 2,2-dimethyl-3-ethylhexane
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
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(b) cis-4-ethyl-2-hexene
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
10.
Question Details
GBEssGOB1 6.AE.094. [1219690]
Provide skeletal line structures for the following alkenes:
(a) propene
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
(b) cyclohexene
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
(c) trans-2-octene
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1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
(d) 1-heptene
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
(e) 3-ethyl-2-pentene
1. Click Open MarvinSketch.
2. Use MarvinSketch to draw the
chemical structure.
3. Click Finished when you are done.
11.
Question Details
GBEssGOB1 6.TB.001. [1220164]
1. Which of the following statements describes why "good fats" are considered good and "bad fats" are considered bad?
I. A diet high in saturated fat can result in heart disease.
II. A diet high in unsaturated fat can result in type 2 diabetes.
III. A diet high in trans fats can result in a decreased risk of cancer.
IV. A diet high in unsaturated fats can result in a decreased risk of cancer.
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(a) n
j All of these statements are true.
k
l
m
j I and II are true.
k
l
m
(b) n
j I, III, and IV are true.
k
l
m
(c) n
j
k
l
m
(d) n
I and IV are true.
j II and III are true.
k
l
m
(e) n
12.
Question Details
GBEssGOB1 6.TB.003. [1219729]
Which of these molecules has the highest melting point?
jA
k
l
m
(a) n
jB
k
l
m
(b) n
(c) n
jC
k
l
m
jD
k
l
m
(d) n
(e) n
j
k
l
m
13.
E
Question Details
GBEssGOB1 6.TB.006. [1219683]
Which of these fatty acids is considered a "good fat"?
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(a) n
j None, all fats are bad.
k
l
m
j All of them because all fats taste good.
k
l
m
(b) n
j B and E because the higher the molecular weight, the better the fat is.
k
l
m
(c) n
j
k
l
m
(d) n
C and B because these molecules contain cis double bonds.
j A, D, and E because these molecules do not contain any double bonds.
k
l
m
(e) n
14.
Question Details
GBEssGOB1 6.TB.028. [1219719]
Which statement best describes the relationship between the following two structures?
(a) n
j They are identical.
k
l
m
j They have different molecular formulas.
k
l
m
(b) n
j
k
l
m
(c) n
They are isomers.
j They are conformers.
k
l
m
(d) n
j One is an alkene and the other is an alkyne.
k
l
m
(e) n
15.
Question Details
GBEssGOB1 6.TB.042. [1219727]
How many hydrogens are bonded to the carbons with the arrows pointing to them?
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(a) n
j carbon 1: 0 carbon 2: 0
k
l
m
j
k
l
m
(b) n
carbon 1: 0 carbon 2: 2
j carbon 1: 1 carbon 2: 2
k
l
m
(c) n
j carbon 1: 4 carbon 2: 4
k
l
m
(d) n
j It is not possible to tell given the skeletal line structure.
k
l
m
(e) n
16.
Question Details
GBEssGOB1 6.TB.093. [1219694]
Which molecule is commonly called toluene?
(a) n
j benzene
k
l
m
(b) n
j
k
l
m
methylbenzene
j ethylbenzene
k
l
m
(c) n
j propylbenzene
k
l
m
(d) n
j butylbenzene
k
l
m
(e) n
17.
Question Details
GBEssGOB1 6.TB.096. [1219710]
Which of the following is NOT a function of cholesterol in the body?
j Cholesterol is a component of cell membranes.
k
l
m
(a) n
j Cholesterol is used by the body to make bile.
k
l
m
(b) n
j Cholesterol is used by the body to make steroid hormones.
k
l
m
(c) n
j
k
l
m
(d) n
Cholesterol is used to repair clogged arteries.
(e) n
j Cholesterol is the body's raw material for making vitamin D.
k
l
m
18.
Question Details
GBEssGOB1 6.TB.097. [1219718]
Cholesterol can't be transported through the bloodstream without the aid of lipoproteins because:
(a) n
j it is too large.
k
l
m
j it is too small.
k
l
m
(b) n
j
k
l
m
(c) n
it is hydrophobic.
j it is hydrophilic.
k
l
m
(d) n
j Actually, cholesterol can be transported through the bloodstream without the aid of lipoproteins.
k
l
m
(e) n
19.
Question Details
GBEssGOB1 6.TB.101. [1219726]
Which of the following is NOT often recommended for reducing the level of LDLs and increasing the level of HDLs in the
blood?
(a) n
j Reducing the amount of cholesterol in the diet.
k
l
m
j
k
l
m
(b) n
Reducing the amount of unsaturated fats in the diet.
j Reducing the amount of saturated fats in the diet.
k
l
m
(c) n
j Taking cholesterol-reducing drugs.
k
l
m
(d) n
j Increasing activity.
k
l
m
(e) n
Assignment Details
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6/22/2011