Chemistry Chapter 12 study
Which of the compounds is a cycloalkene?
(it's an image of a square with one double bond)
ether
-O-
alcohol
-OH
When naming amines according to the IUPAC system, the -e in the corresponding alkane is replaced with -ide. -amine. -ane. -amide. -ine.
-amine
The reaction of cyclohexene and Cl₂ yields
1,2-dichlorocyclohexane.
Which of the following is the IUPAC name for the compound?
1-bromo-3-methylcyclohexene
Which of the following names are correct?
1-chloro-3-propylbenzene
The alcohol and carboxylic acid required to form propyl ethanoate are 1-propanol and ethanoic acid. methanol and propionic acid. 2-propanol and ethanoic acid. ethanol and propionic acid. propanol and propanoic acid.
1-propanol and ethanoic acid.
The maximum number of electrons that may occupy the third energy level is 2. 32. 18. 10. 8.
18
How many isomers are there for C₂H₄Cl₂?
2
The IUPAC name of CH3CH= CHCH3 is
2-butene.
The IUPAC name of CH₃CH = CHCH₃ is
2-butene.
What is the name of the compound below?
2-chlorotoluene
The IUPAC name for CH3CH2C (triple bond) CCH3 is
2-pentyne.
The IUPAC name for CH₃CH₂C ≡ CCH₃ is
2-pentyne.
The major product of reaction of 3-methyl-2-pentene with HCl is
3-chloro-3-methylpentane.
Which of the following names are correct?
3-ethyl-1-heptene
Name this compound.
3-ethyl-3-methyl-1-hexene
Consider a neutral atom with 30 protons and 34 neutrons. The atomic number of the element is 64. 32. 94. 34. 30.
30
What is the IUPAC name for the following compound?
4-chloro-4,5-dimethyl-2-hexene
What is the IUPAC name for the following compound? CH3 Cl CH3 -H -- CH = CH H3 H3
4-chloro-4,5-dimethyl-2-hexene
What is the name of the following compound ? (Lines- line at top, connecting to 1 of the 2 points and has double bond at end)
5-methyl-1-hexene
Which of the following gives the correct numbers of protons, neutrons, and electrons in a neutral atom of 11850Sn? 68 protons, 68 neutrons, 50 electrons 50 protons, 50 neutrons, 50 electrons 50 protons, 68 neutrons, 50 electrons 118 protons, 50 neutrons, 118 electrons 118 protons, 118 neutrons, 50 electrons
50 protons, 68 neutrons, 50 electrons
Which of the following descriptions of a subatomic particle is correct? A proton has a positive charge and a negligible mass. A proton has a positive charge and a mass of approximately 1 amu. A neutron has a positive charge and a mass of approximately 1 amu. An electron has a negative charge and a mass of approximately 1 amu. A neutron has no charge and its mass is negligible.
A proton has a positive charge and a mass of approximately 1 amu.
The correct formula for a compound formed from the elements Al and O is AlO3 . Al2O . Al2O3 . AlO. Al3O2 .
Al2O3 .
The hydrogenation of an alkene gives a(n)
Alkane
The odors you associate with lemons, oranges, roses, and lavender are due to
Alkenes
What is the molecular formula of benzene?
C6H6 (p.385)
Which of the following compounds is an alkyne?
CH3-CH2-C (connected by a triple bond) CH
What is the condensed structural formula for the product of the hydrogenation of 2-butene using a platinum catalyst?
CH3-CH2-CH2-CH3
What is the condensed structural formula of the compound propene?
CH3-CH=CH2 (p.376)
What is the condensed structural formula of the compound propene?
CH₃CH = CH₂
Which of the following compounds is an alkyne?
CH₃CH₂C ≡ CH
What is the molecular formula of benzene?
C₆H₆
Which of the following is a naturally occurring polymer (not a synthetic polymer)?
DNA.
Of the elements: B, C, F, Li, and Na. The element with the highest ionization energy is F. Li. B. C. Na.
F
What is the starting monomer for the polymer Teflon?
F F F-C=C-C-F
All alkenes show cis-trans isomerism. (T/F)
False
The amine functional group is rarely found in pharmacologically active compounds. True or False.
False
The repeating unit in polmers is always ethene. (T/F)
False
Water can be added to alkenes to produce acids. (T/F)
False (it produces alcohols)
Which one of the following elements forms two or more ions with different ionic charges? K Ca F Fe O
Fe
What is the correct formula for the iron (II) ion? Fe2- Fe3+ Fe+ Fe2+ Fe3-
Fe2+
What is the correct formula for iron (III) sulfide? Fe2S2 Fe2S3 Fe2S FeS2 FeS
Fe2S3
Which of the following compounds is an alkene?
H2CCHCH3
A polar covalent bond is found in which of these compounds? H2O NaCl F2 H2 N2
H2O
The correct formula for the compound formed from Mg and S is Mg2S2. Mg2S. MgS2. MgS. Mg2S3.
MgS
amine
NH2
Of the elements: B, C, F, Li, and Na., the element with the largest atomic radius is B. Li. C. F. Na.
Na
What is the formula of a compound that contains Na+ and PO43- ions? Na3P Na3PO3 NaPO4 Na2PO3 Na3PO4
Na3PO4
An amine contains what
Nitrogen
What is the correct formula for the oxide ion? O- O3+ O2- O2+ O+
O2-
ketone
O=-C-
amide
O=C-N
ester
O=C-O
aldehyde
O=CH
carboxylic acid
O=COH
What is the major product of the reaction shown below? H+ CH3- CH2- CH = CH2 + HOH -->
OH CH3 - CH2 -CH - CH3
What is the major product of the reaction shown below? CH3- CH2- CH = CH2 + HOH __>
OH CH3 - CH2 -H - CH3
Which of the following is a characteristic of the modern periodic table? A period is a column on the periodic table. The A groups contain the transition elements. A group is a horizontal row on the periodic table. The B groups contain the representative elements. The elements in each group have similar chemical properties.
The elements in each group have similar chemical properties.
Which of the following is NOT part of the kinetic theory of gases? Gas particles do not attract or repel one another. There is very little empty space in a gas. Gas particles move faster when the temperature increases. Gas particles move rapidly. A gas is composed of very small particles.
There is very little empty space in a gas.
Which of the following is NOT true for the atoms 13N, 14N, and 15N? They all have the same mass number. They all have the same atomic number. They all have 7 electrons. They all have 7 protons. They are isotopes.
They all have the same mass number.
Fragrances and flavors are often compounds with more than one functional group (for example, an alkene that also contains an aldehyde). (T/F)
True
In a cis alkene, the groups are on the same side of the double bond. (T/F)
True
Polymers are large molecules consisting of repeating units. T/F
True
The amide group is often found in pharmacologically active substances. True or False.
True
The compound is cis-3-hexene. (T/F) (note: the structural formula wouldn't copy but it's on p. 379)
True
Light-induced cis-trans isomerization is an important step in vision. (T/F)
True (p.382)
Hydrogenation of unsaturated vegetable oils raises the melting point and makes them more solid. (T/F)
True (p.383)
The carbonyl group consists of a carbon-oxygen-carbon structure. a carbon-oxygen-hydrogen structure. a carbon-oxygen triple bond. a carbon-oxygen single bond. a carbon-oxygen double bond.
a carbon-oxygen double bond.
Isomers are molecules that share the same formula and have a different arrangement of atoms within the molecule. the same arrangement of atoms within the molecule. the same shape in each molecule. a different shape to the molecule. identical boiling points.
a different arrangement of atoms within the molecule.
Which of the following is a secondary protein structure? Ser-Met-Ala-Gly-Ile disulfide bond hydrophobic interactions α helix salt bridges
a helix
The carbon tetrachloride molecule, CCl4, is a nonpolar molecule with polar bonds. a polar molecule with polar bonds. a nonpolar molecule with nonpolar bonds. a polar molecule with nonpolar bonds. a polar molecule with ionic bonds.
a nonpolar molecule with polar bonds.
The ammonia molecule ( NH3 ) is a polar molecule with polar bonds. a nonpolar molecule with polar bonds. a polar molecule with nonpolar bonds. a polar molecule with ionic bonds. a nonpolar molecule with nonpolar bonds.
a polar molecule with polar bonds.
The compound 1-butyne contains
a triple bond
The compound 1-butyne contains
a triple bond.
When acetic acid reacts with ammonia, NH3, the reaction called amidation yields amino acetate. ethylammonium hydroxide. acetamide. acetamine. ammonium acetate.
acetamide
W hat is the common name for ethanoic acid? formic acid butyric acid acetic acid stearic acid citric acid
acetic acid
The compound 2-propanone is also known as acetone. propylone. dimethyl ketone. 2-propanone. β-propanone.
acetone
In the IUPAC naming system, an aldehyde is named by replacing the -e of the name of the corresponding alkane with one. ol. ene. al. yne.
al
In the peptide Ala-Try-Gly-Phe, the N-terminal amino acid is phenylalanine. glycine. tryptophan. aspartic acid. alanine.
alanine
A monosaccharide that contains 4 carbon atoms, one of which is in an aldehyde group, is classified as a(n) aldohexose. ketopentose. aldopentose. ketotetrose. aldotetrose.
aldotrtrose
Physiologically active nitrogen-containing compounds produced by plants are called alkaloids. aromatics. esters. ethers. polymers.
alkaloids
An organic compound composed of carbon and hydrogen connected only by single bonds is an alcohol. alkene. alkyne. aromatic compound. alkane.
alkane
The hydrogenation of an alkene give a/an
alkane
A hydrocarbon with a double bond is a(n) alcohol. alkyne. alkane. saturated compound. alkene.
alkene
A hydrocarbon with a double bond is a/an
alkene
A hydrocarbon with a double bond is a(n)
alkene.
The odors you associate with lemons, oranges, roses, and lavender are due to
alkenes.
Which statement is NOT true? There are many different types of lipids. Lipids are soluble in organic solvents. Lipids are found in cell membranes. Some hormones are lipids. All lipids contain fatty acids.
all lipids contain fatty acids
A peptide bond contains which kind of functional group? ketone amine carboxylic acid alcohol amide
amide
Is CH3CHC(O)2NHCH3 an amide or amine?
amide
The peptide bonds that combine amino acids in a protein are sulfide bonds. glycosidic bonds. ester bonds. amide bonds. ether bonds.
amide bonds
Is CH3CH2NHCH3 an amide or amine?
amine
What functional group is always found in alkaloids (such as caffeine, nicotine, and digitalis)? ester acid amide ether amine
amine
Amides are derivatives of __________ and __________. carboxylic acids; alcohols alcohols; carboxylic acids alkanes; amines amines; esters amines; carboxylic acids
amines; carboxylic acids
Which of the following polyatomic ions has a positive charge? hydroxide sulfate hydrogen carbonate nitrate ammonium
ammonium
Aminobenzene is properly known as phenylamine. aniline. amidine. histidine. toluene.
aniline
A precursor of prostaglandins is __________ acid. linoleic tauric oleic arachidonic palmitic
arachidonic
A compound that contains the ring structure of benzene is called a(n)
aromatic compound
A compound that contains the ring structure of benzene is called a(n) hydrocarbon. cycloalkane. alkane. aromatic compound. alkyl group.
aromatic compound
A compound that contains the ring structure of benzene is called a/an
aromatic compound.
In the three-dimensional structure of methane, CH4, the hydrogen atoms attached to a carbon atom are aligned at the corners of a square. at the corners of a rectangle. in a straight line. at the corners of a cube. at the corners of a tetrahedron.
at the corners of a tetrahedron
The shape of the water molecule ( H2O) is bent pyramidal. linear. octagonal. tetrahedral.
bent
The compound below is named
benzene
The compound below is named? (shape of a nut, from a nut and bolt)
benzene
Which of the following compounds has the smallest number of hydrogen atoms?
butyne
Which one of the following compounds has the smallest number of hydrogen atoms? butene butane 2-methylpropane butyne 2-methylcyclopropane
butyne
A hydrocarbon contains only the elements carbon and hydrogen. carbon, hydrogen, and oxygen. carbon, hydrogen, and nitrogen. carbon and oxygen. hydrogen and oxygen.
carbon and hydrogen
The functional group in acetic acid is called the ester group. carboxyl group. aldehyde group. hydroxyl group. carbonyl group.
carboxyl group
Which of these functional groups is likely to give a sour taste to a food? thiol ketone ester carboxylic acid ether
carboxylic acid
In a simple model of atherosclerosis and heart disease, the compound that forms plaques that adhere to the walls of the blood vessels is __________. sphingosine glycerol carnauba wax cholesterol stearic acid
cholesterol
Which of the following lipids will give no fatty acid when hydrolyzed? glycolipid cholesterol phospholipid fat wax
cholesterol
a lipid that cannot be hydrolyzed
cholesterol
What is the name of the compound shown below? (page 379 for image)
cis-3-hexene
An unsaturated compound always
contains at least one double or triple bond.
An unsaturated compound always contains at least one double or triple bond. is a cycloalkane. contains a triple bond. is aromatic. contains a double bond.
contains at least one double or triple bond.
An unsaturated compound always
contains at least one double or triple bond. (p.375)
The name of the Cu+ ion is copper (II). cuprum. copper (I). cobalt. copper
copper (I).
The reactants needed to produce the compound chlorocyclopentane are
cyclopentene and HCl.
As you rise higher in Earth's atmosphere, the atmospheric pressure
decreases
Which of the following is NOT an alkaloid? caffeine diethylamine quinine nicotine cocaine
diethylamine
A carbohydrate that gives two molecules when it is completely hydrolyzed is known as a monosaccharide. disaccharide. starch. polysaccharide. trisaccharide.
disaccharide
Maltose is a disaccharide. trisaccharide. polysaccharide. phosphosaccharide. monosaccharide.
disaccharide
A polyunsaturated fatty acid contains more than one long carbon chain. hydroxyl group. carbonyl group. carboxyl group. double bond.
double bond
the functional group of triacylglycerols
ester
Many of the fragrances of flowers and the flavors of fruits are due to amines. amides. ethers. esters. carboxylic acids.
esters
The IUPAC name for ethylene is
ethene
The IUPAC name for ethylene is
ethene.
What is the product of the reaction of pentanoic acid with ethanol in the presence of a strong acid? ethyl pentanoate pentyl acetate pentyl ethanoate heptanoic acid
ethyl pentanoate
A monosaccharide can be hydrolyzed to smaller units. True False
false
Acetone is a three-carbon aldehyde. True False
false
Alkynes contain double bonds. True False
false
All aldehydes have a carbonyl carbon bonded to at least two hydrogens. True False
false
Amines contain carbon, hydrogen, and oxygen. True False
false
Amines contain the functional group -OH. True False
false
Amines do not form hydrogen bonds. True or False.
false
Amylopectin is a straight-chain polysaccharide. True False
false
Carboxylic acids are responsible for the sweet taste of fruits and vegetables. True False
false
DNA is a lipid. True False
false
Esters are formed from the reaction of an ether with a carboxylic acid. True False
false
In a trans alkene, the groups are on the same side of the double bond. (t/f)
false
In the α anomer of glucose, the OH on carbon 1 is above the plane of the ring. True False
false
Most plant lipids are saturated lipids. True False
false
Olestra is a triacylglycerol. True False
false
Organic compounds are always highly water soluble. True False
false
Ortho compounds have substituents on the 1 and 3 positions of the benzene ring. True False
false
Palmitic acid is an unsaturated fatty acid. True False
false
Propylene is used to induce ripening in fruits.(T/F)
false
Sucrose is made up of glucose units only. True False
false
The bond angles in a tetrahedral molecule are 90°. True False
false
The carbonyl group consists of a carbon-oxygen single bond, and a second bond to hydrogen. True False
false
The carbonyl group does not have a dipole. True False
false
The carbonyl group gives ketones lower boiling points than alkanes of similar mass. True False
false
The major acidic component of vinegar is formic acid. True False
false
The repeating unit in polmers is always ethene. (T/F)
false
The suffix -one indicates an aldehyde in the IUPAC system of naming. True False
false
Zwitterions have an overall positive charge. True False
false
triacylglycerols are formed from glycerol and
fatty acids
The sugar also known as dextrose and blood sugar is fructose. sucrose. glucose. lactose. galactose.
glucose
lecithin is a triacylglycerol steroid glycerophospholipid
glycerophospholipid
In the peptide Ser-Cys-Ala-Gly, the C-terminal end is serotonin. alanine. serine. glycerine. glycine.
glycine
In a disaccharide, two monosaccharides are joined by what kind of bond? anomeric glycosidic double alcohol rotational
glycosidic
During photosynthesis, carbon dioxide and water are converted to glucose and oxygen by insects. earthworms. large animals. mushrooms. green plants.
green plants
An ionic compound has a net negative charge. has a net charge of zero. has a net positive charge. contains only cations. contains only anions.
has a net charge of zero
The carbon atoms in saturated hydrocarbons contain both a double and a triple bond. have only single bonds. contain at least one triple bond. contain at least one double bond. contain a benzene ring.
have only single bonds.
Which of the following is an example of a secondary protein structure? dipeptide fatty acid triglyceride a helix amino acid
helix
Which of the compounds is aromatic?
hexagon with a circle in it
Which of the following is NOT typical of most organic compounds? covalent bonding poor solubility in water low boiling point high melting point high flammability
high melting point
The reaction of an alkene and water in the presence of an acid catalyst to produce an alcohol is called
hydration.
The interactions that are important in the secondary structure of a protein are hydrogen bonds. hydrophobic interactions. disulfide bonds. salt bridges. peptide bonds.
hydrogen bonds
The α helix of the secondary structure of a protein is held together by __________ between two widely separated parts of a protein chain. hydrogen bonds disulfide bridges hydrophobic interactions hydrophilic interactions salt bridges
hydrogen bonds
Commercially, liquid vegetable oils are converted to solid fats such as margarine by saponification. oxidation. hydration. hydrolysis. hydrogenation.
hydrogenation
The reaction of Hydrogen (H₂) and propene using a platinum catalyst is called
hydrogenation.
What amino acids have polar R groups that are attracted to water? aromatic hydrophobic hydrocarbon nonpolar hydrophilic
hydrophilic
Alcohols contain which functional group? thiol amine hydroxyl amide
hydroxyl
All of the carbon-carbon bonds in benzene are
identical
All of the carbon-carbon bonds in benzene are
identical (p.385)
In the β-pleated sheet secondary structure of a protein, two or more amino acid sequences in separate parts of the protein are held together in a double helix. in random order, due to hydrophobic interactions. in a zig-zag conformation, by hydrogen bonding. in a coil, by hydrogen bonding. in a triple helix.
in a zig-zag conformation, by hydrogen bonding.
Valence electrons are electrons located in the outermost energy level of an atom. throughout the atom. in the first three shells of an atom. in the nucleus of an atom. in the innermost energy level of an atom.
in the outermost energy level of an atom
As carbon bonds with atoms of increasingly higher electronegativities, the polarity of the bond increases. becomes inverted. stays the same. decreases. reverses.
increases
high melting point. organic or inorganic
inorganic
ionic bonds. organic or inorganic.
inorganic
Fe2(SO4)3 is called iron trisulfate. iron (III) sulfate. diiron trisulfate. iron (II) sulfate. iron sulfate.
iron (III) sulfate
A monosaccharide that consists of 5 carbon atoms, one of which is in a ketone group, is classified as a(n) aldohexose. aldotetrose. ketotetrose. ketopentose. aldopentose.
ketopentose
Humans cannot digest cellulose because they lack the necessary enzymes to digest β-glycosides. are poisoned by β-glycosides. are allergic to β-glycosides. have intestinal flora which use up β-glycosides. cannot digest chlorophyll.
lack the necessary enzymes to digest β-glycosides.
The shape of the carbon dioxide (CO2 ) is linear. bent. square. pyramidal. hexagonal.
linear
Which of the following is a characteristic of nonmetals? low melting points malleable good conductors of heat good conductors of electricity shiny
low melting points
Compared to saturated fatty acids, unsaturated fatty acids have longer carbon chains. lower melting points. higher melting points. shorter carbon chains. greater intermolecular attraction.
lower melting points
The air pressure on a rainy day is usually __________ air pressure on a sunny day.
lower than
The name of the compound shown below is
m-ethyltoluene.
The compound MgCl2 is named magnesium chloride. dimagnesium chloride. magnesium (II) chloride. magnesium chlorine. magnesium dichloride.
magnesium chloride.
In ionic compounds, __________ lose their valence electrons to form positively charged __________. (5,2) nonmetals; anions metals; anions metals; cations metals; polyatomic ions nonmetals; cations
metals; cations
Small molecules that make up the repeat unit in polymers are called
monomers
Small molecules that make up the repeat unit in polymers are called alkenes. minipolymers. synthetic polymers. alkynes. monomers.
monomers
Small molecules that make up the repeat unit in polymers is called
monomers.
Fructose does not undergo hydrolysis because it is a aldose. hexose. reducing sugar. monosaccharide. disaccharide.
monosaccharide
The oxygen atom in a carbonyl group is __________ the carbon atom. identical in electronegativity to more soluble than more electronegative than more electropositive than less electronegative than
more electronegative than
In the kinetic molecular theory of gas behavior, the assumption is made that gas molecules
move rapidly in random directions
Aspartame® and Saccharin® are two examples of polysaccharides. disaccharides. noncarbohydrate sweeteners. alcohol sweeteners. chlorosaccharides.
noncarbohydrate sweeteners
How many hydrogen atoms is the carbonyl group in a ketone bonded to? none one two three four
none
In a molecule with a symmetrical arrangement of polar bonds, the overall molecule is somewhat polar. reverse polar. strongly reverse polar. highly polar. nonpolar.
nonpolar
The bond in Cl2 is a(n) ionic bond. no bond. polar ionic bond. metallic bond. nonpolar covalent bond.
nonpolar covalent bond.
Which of the following is an unsaturated fatty acid? palmitic lauric stearic oleic myristic
oleic
In all aldehydes except formaldehyde, how many hydrogen atoms is the carbonyl group bonded to? one two three four
one
Amylose is a form of starch which has carbon-carbon bonds joining glucose units. hemiacetal links joining glucose units. only α-1,4-links bonds glucose units. only β-1,4-bonds between glucose units. both α-1,4-and β-1,4-bonds between glucose units.
only α-1,4-links bonds glucose units.
covalent bonds. organic or inorganic
organic
flammable. organic or inorganic
organic
insoluble in water. organic or inorganic
organic
Which of the following is NOT a function of lipids in the human body? insulation pH regulation emulsification energy storage protection
pH regulation
What kinds of interactions are NOT part of tertiary protein structure? peptide bonds disulfide bonds hydrophilic interactions hydrophobic interactions salt bridges
peptide bonds
Insects communicate with chemicals called
pheromones.
The water molecule has a dipole with the negative portion surrounding the molecule. pointing from the oxygen through the hydrogen atoms. localized on one of the hydrogens. pointing toward the oxygen atom. localized between the hydrogen atoms.
pointing toward the oxygen atom.
Long-chain molecules that consist of many repeating units called
polymers.
The energy stored in the chemical bonds of a carbohydrate molecule is
potential energy
the peptide bonds between amino acids
primary structure
The shape of the ammonia molecule ( NH3 ) is square. pyramidal. octagonal. hexagonal. linear.
pyramidal.
The combination of two or more protein molecules to form an active protein
quaternary
When two protein chains combine to form an active protein, the structural level is __________. secondary primary pleated quaternary tertiary
quaternary
In the kinetic molecular theory of gas behavior, particles of a gas tend to move __________ and collisions between them are __________.
rapidly; elastic
The structural formula for benzene is often represented as a
ring of six carbon atoms with a circle in the center.
The structural formula of benzene is often represented as a
ring of six carbon atoms with a circle in the center.
The structural formula of benzene is often represented as a ring of five carbon atoms. ring of six carbon atoms with a circle in the center. ring of six carbon atoms with six double bonds. cycloalkyne. cycloalkane.
ring of six carbon atoms with a circle in the center.
Which one of the following is NOT an organic substance? salt, sodium chloride an antibiotic coal nylon silk
salt, sodium chloride
The products of the saponification of a fat are salts of fatty acids and glycerol. phospholipids. the esters of fatty acids. fatty acids and glycerol. salts of fatty acids.
salts of fatty acids and glycerol
The name of the reaction that occurs when a fat reacts with sodium hydroxide and water is __________. saponification reduction hydrogenation oxidation hydration
saponification
The synthetic polymer polyethylene is unreactive because it is
saturated
The synthetic polymer polyethylene is unreactive because it is
saturated.
pleated sheet
secondary structure
the structural level achieved when hydrogen bonds form between the carboxyl group of one amino acid and the amino group of a different amino acid
secondary structure
The structural formulas of amino acids are the same EXCEPT for the hydrogen bonding. side (R) group. amino group. alpha carbon. carboxyl group.
side (R) group
phospholipids that do not contain glycerol
sphingolipids
Cholesterol belongs to the __________ group of lipids. prostaglandin steroid wax phospholipid triacylglycerol
steroid
aldosterone is a triacylglycerol steroid glycerophospholipid
steroid
testosterone is a triacylglycerol steroid glycerophospholipid
steroid
The change of state from solid to gas is termed
sublimation
Methionine is an amino acid that contains a sulfur atom. a chlorine atom. a phenyl ring. a sodium atom. a heterocyclic ring.
sulfur atom
Photosynthesis uses __________ as an energy source. oxygen sunlight chlorophyll glucose carbon dioxide
sunlight
In an enzyme, the polypeptide chain folds into a compact shape known as the __________ structure. quaternary primary tertiary pleated secondary
tertiary
The protein folds into a compact structure stabilized by interactions between R groups
tertiary
The shape of the carbon tetrachloride molecule is linear. octagonal. pyramidal. square. tetrahedral
tetrahedral
When naming an alkene, the parent chain is the longest carbon chain
that contains both atoms of the double bond.
When naming an alkene, the parent chain is the longest carbon chain regardless of whether or not it contains the double bond. that contains a branch. that contains both atoms of the double bond. that does not contain the double bond. that contains at least one of the carbon atoms of the double bond.
that contains both atoms of the double bond.
According to Markovnikov's rule, the hydrogen in HCl adds to the carbon in the double bond
that has the greater number of hydrogen atoms attached.
Which of the following pairs of compounds are cis-trans isomers? (note: the image is on p. 379 at the top... it's cis-2-butene and trans-2-butene)
the 2nd choice on my hw... reference page 379!
From what component is the first part of the IUPAC name of an ester (such as methyl acetate) derived? the amide the ether the ester the carboxylic acid the alcohol
the alcohol
Some alkenes have cis-trans isomers because
the carbon atoms in the double bond cannot rotate.
Some alkenes have geometric (cis-trans) isomers because
the carbon atoms in the double bond cannot rotate.
Unsaturated fatty acids have lower melting points than saturated fatty acids because the trans double bonds give them an irregular shape. the cis double bonds give them an irregular shape. their molecules fit closely together. they have fewer hydrogen atoms. they have more hydrogen atoms.
the cis double bonds give them an irregular shape.
Hyperglycemia is a condition in which the amount of glucose in the urine is lower than normal. the glucose level in the blood is higher than normal. the glucose level in the pancreas is lower than normal. the glucose level in the liver is lower than normal. the glucose level in the blood is about 100 mg/dL.
the glucose level in the blood is higher than normal.
Hypoglycemia is a condition in which the glucose level in the pancreas is higher than normal. the amount of glucose in the urine is higher than normal. the glucose level in the blood is higher than normal. the glucose level in the blood is lower than normal. the glucose level in the blood is about 100 mg/dL.
the glucose level in the blood is lower than normal.
Which part of a soap is responsible for its ability to dissolve fats and oily dirt? the hydrophobic end the carbonyl group the carboxylate the ionized oxygen the hydrophilic end
the hydrophobic end
A chemical equation is balanced when the number of atoms of each element is the same in reactants and products. the charge on each atom is the same in reactants and products. the total number of ions is the same in reactants and products. the sum of the coefficients of the reactants is equal to the sum of the coefficients of the products. the total number of molecules is the same in reactants and products.
the number of atoms of each element is the same in reactants and products.
Which of the following pairs of compounds are cis-trans isomers?
the one where the 2 H's are at the bottom &the one with the H's diagonal from each other
According to the kinetic theory of gases, a gas can be compressed much more than a liquid or solid because
the particles of a gas are very far apart.
In an electron-dot structure of an element, the dots are used to represent all of the electrons in the atom. the valence electrons. only the electrons that will participate in bond formation. the electron arrangement. the electrons that the element will gain when it forms a compound.
the valence electrons.
Alkenes and alkynes are called unsaturated compounds because
they have fewer hydrogen atoms attached to the carbon chain than alkanes.
Alkenes and alkynes are called unsaturated compounds because they have the maximum number of hydrogen atoms attached to each carbon in the compound. they have more carbon atoms than alkanes. they have fewer carbon atoms than alkanes. they have more hydrogen atoms attached to the carbon chain than alkanes. they have fewer hydrogen atoms attached to the carbon chain than alkanes.
they have fewer hydrogen atoms attached to the carbon chain than alkanes.
How many isomers are there for dibromobenzene?
three
What is the name of the compound shown below?
trans-2-pentene
What is the name of the compound shown below? (note: the structural formula wouldn't copy but it's b. on page 379 in sample problem 11.8)
trans-2-pentene
triolein is a triacylglycerol steroid glycerophospholipid
triacylglycerol
1,2,3-propanetriol is obtained during the manufacture of soap. True False
true
A major flavor component of vanilla is an aldehyde. True False
true
A sodium atom is larger than a silicon atom. True False
true
Alcohols form hydrogen bonds; this accounts for their higher boiling points when compared to similar-sized alkanes. True False
true
Alcohols, ethers, and phenols contain oxygen with only single bonds. True False
true
An ester is derived from an alcohol and a carboxylic acid. True False
true
As a solid melts, its temperature does not change. true or false
true
Atomic size decreases going from left to right within a period. True False
true
Benzoic acid is an aromatic carboxylic acid. True False
true
Chlorine has a higher ionization energy than aluminum. True False
true
Disulfide bonds stabilize the tertiary structure of a protein. True False
true
Excess cholesterol in the blood can lead to a build up of plaque. True False
true
Fructose is a ketohexose. True False
true
Glucose is stored in animals as glycogen. True False
true
Halogenation is the process of adding chlorine or similar elements to an alkene or alkyne. True False
true
Hydrogenation is used to convert alkenes and alkynes to alkanes. True False
true
Hydrogenation is used to convert alkenes and alkynes to alkanes. (T/F)
true
Hydrogenation of unsaturated vegetable oils raises the melting point and makes them more solid. True False
true
In a ketone, the carbonyl group is bonded to two other carbon atoms. True False
true
In an exothermic reaction, heat is a product. true or false
true
Isomers have the same molecular formula. True False
true
Many sex hormones are steroids. True False
true
Methane has a tetrahedral structure. True False
true
Most prescription drugs are organic molecules. True False
true
Nylon, polyester, and most other plastics are carbon compounds. True False
true
Oleic acid is an unsaturated fatty acid. True False
true
One essential building block of aspirin, ibuprofen, and acetaminophen is the benzene ring. True False
true
Organic chemistry is the study of the chemistry of carbon compounds. True False
true
Organic liquids are often lighter than water. True False
true
Para compounds have substituents on the 1 and 4 positions of the benzene ring. True False
true
Polymers are large molecules consisting of repeating units. True False
true
Soaps are salts of long chain fatty acids. True False
true
Sphingolipids contain fatty acids. True False
true
Sucrose is a disaccharide. True False
true
The carbonyl group gives aldehydes higher boiling points than alkanes of similar mass. True False
true
The ester formed from butyl alcohol and acetic acid is called butyl acetate. True False
true
The first four linear alkyl substituent groups are named methyl, ethyl, propyl, and butyl. True False
true
The product of oxidation of an aldose is a carboxylic acid. True False
true
The products of complete combustion are carbon dioxide and water. True False
true
The suffix -al indicates an aldehyde in the IUPAC system of naming. True False
true
The temperature at which water melts and freezes is the same. true or false
true
When a liquid is boiling, its temperature does not change. true or false
true
When naming an alkane, the main chain is the longest continuous carbon chain regardless of bends. True False
true
Disulfide bonds in a protein chain connect two cysteine residues. an alcohol and a carboxylic acid group. tryptophan and alanine residues. an amine and a carboxylic acid group. two asparagine residues.
two cysteine residues
a fatty acid with at least one double bond
unsaturated
Organic compounds with double or triple bonds are classified as
unsaturated compounds
Organic compounds with double or triple bonds are classified as
unsaturated compounds.
Organic compounds with double or triple bonds are classified as substituted compounds. unsaturated compounds. dilute solutions. concentrated solutions. saturated compounds.
unsaturated compounds.
Hydrogen sulfide, H2S, has a shape similar to carbon tetrachloride. carbon dioxide. hydrogen chloride. carbon monoxide. water.
water
A zwitterion of any amino acid has a net charge of __________.
zero
Cellulose is not digestible by humans because it contains glucose units linked by __________-glycosidic bonds. β-1,4 α-1,6 β-1,2 α-1,4 α-1,2
β-1,4