Introductory Chemistry: An Active Learning Approach
Introductory Chemistry: An Active Learning Approach
6th Edition
ISBN: 9781305079250
Author: Mark S. Cracolice, Ed Peters
Publisher: Cengage Learning
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Chapter 21, Problem 96E
Interpretation Introduction

(a)

Interpretation:

Whether the statement “to be classified as organic, a compound must be or have been a part of a living organism” is true or false is to be determined.

Concept introduction:

Compounds can be classified as organic and inorganic material on the basis of the material from which they are derived. The organic compound is the class of compound that has carbon-hydrogen bond or carbon-carbon long chains in their structure. They are derived from plants, animals and living organisms.

Inorganic compounds are those compounds that consist of other elements than carbon or have no carbon-carbon bond in their structure. They are derived from minerals.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “to be classified as organic, a compound must be or have been a part of a living organism”, is false.

Explanation of Solution

According to the old definition, all organic compounds are derived from living organisms. But the modern definition of an organic compound classifies organic compounds as the compound that has carbon-hydrogen bond or carbon-carbon long chains in their structure. They may either be derived from living plants or animals or may be produced by artificial means. The derivation of an organic compound from a living source is not mandatory anymore.

Conclusion

The statement “to be classified as organic, a compound must be or have been a part of a living organism”, is false.

Interpretation Introduction

(b)

Interpretation:

Whether the statement “carbon atoms normally form four bonds in organic compounds” is true or false is to be determined.

Concept introduction:

Carbon atom is tetravalent in nature. The simplest organic compound is methane. In a methane molecule, a carbon atom is covalently bonded to four hydrogen atoms. This is the maximum valency of a carbon atom can show.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “carbon atoms normally form four bonds in organic compounds” is true.

Explanation of Solution

The carbon atom has a valency of four. The four valence electrons in a carbon atom are present in the 2s and 2p orbitals. Hence carbon atom covalently binds to four atoms with four sigma bonds.

Conclusion

The statement “carbon atoms normally form four bonds in organic compounds” is true.

Interpretation Introduction

(c)

Interpretation:

Whether the statement “only an unsaturated hydrocarbon can engage in an addition reaction” is true or false.

Concept Introduction:

An addition reaction is defined as a reaction in which two or more molecules combine to form a larger one. An addition reaction occurs when atoms or groups are added to a compound containing multiple bonds. An example of an addition reaction is given below:

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  1

The atoms H and X in the HX molecule add to the carbon atoms of the ethene molecule to give halo-ethane molecule as the product.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “only an unsaturated hydrocarbon can engage in an addition reaction” is true.

Explanation of Solution

In a saturated hydrocarbon, all the four valences of all the carbon atoms are satisfied and hence these carbon atoms of saturated compounds are not reactive towards addition reactions. However, unsaturated hydrocarbons unlike their saturated counterparts, engage in an addition reaction. The multiple bonds present in the unsaturated hydrocarbons enable the compound to undergo addition reaction and add the molecule across the multiple bonds.

For example,

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  2

Conclusion

The statement “only an unsaturated hydrocarbon can engage in an addition reaction” is true.

Interpretation Introduction

(d)

Interpretation:

Whether the statement “members of a homologous series differ by a distinct structural unit” is true or false is to be determined.

Concept Introduction:

A homologous series is a series of compounds containing the same functional group, having similar chemical properties, but differing from each other by the fixed number of repeating units. This difference by a common unit among these compounds, alter their physical properties like boiling point and melting point. However, the chemical properties almost remain the same.

Expert Solution
Check Mark

Answer to Problem 96E

The statement, “members of a homologous series differ by a distinct structural unit” is true.

Explanation of Solution

For example, in alkanes, the simplest hydrocarbon is methane with the chemical formula CH4 Methane is followed by ethane (C2H6), propane (C3H8) and butane (C4H10). In this series, the chemical formulas of methane and ethane differ by a CH2 unit. The chemical formulas of ethane and propane also differ by a CH2 unit. The chemical formulas of propane and butane follow a similar trend.

Conclusion

The statement, “members of a homologous series differ by a distinct structural unit” is true.

Interpretation Introduction

(e)

Interpretation:

Whether the statement “alkanes, alkenes and alkynes are unsaturated hydrocarbons” is true or false, is to be determined.

Concept Introduction:

Alkanes are hydrocarbons in which each carbon atoms is bonded with four other atoms through four single bonds. The general formula of alkanes is CnH2n+2, n is the number of carbon atoms.

Alkenes are those hydrocarbons which contain at least one carbon-carbon double bond. They are also called olefins. Alkenes are represented by the formula CnH2n.

Alkynes are hydrocarbons with one or more triple bonds between the carbon atoms. They are generally more reactive than alkanes and alkenes. They are represented by the general formula. Alkynes are represented by the general formula CnH2n2.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “alkanes, alkenes and alkynes are unsaturated hydrocarbons” is false.

Explanation of Solution

The chemical structure of an alkane is below

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  3

The chemical structure of an alkene and an alkyne are depicted below respectively.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  4

Hydrocarbon in which each carbon atom is bonded to 4 other atoms and does not contain any double or triple bond are called saturated hydrocarbons. Hydrocarbons in which at least one carbon-carbon triple or a double bond is present are called unsaturated hydrocarbons. Each carbon atom in propane is bonded via a single bond to 4 other atoms. Thus it is a saturated compound. In propene and ethyne not all carbon atoms are bonded to 4 other atoms by single bond. Propene has one double bond and ethyne has one triple bond thus propene and ethyne are unsaturated hydrocarbons.

Conclusion

The statement “alkanes, alkenes and alkynes are unsaturated hydrocarbons” is false.

Interpretation Introduction

(f)

Interpretation:

Whether the statement “alkyl groups are a class of organic compounds” is true or false is to be determined.

Concept Introduction:

An alkane is represented by the formula CnH2n+2. An example of alkane is methane (CH4). When a hydrogen atom is extracted from a molecule of methane, we get CH3, an alkyl group called methyl. The general formula for the alkyl group hence becomes CnH2n+1.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “alkyl groups are a class of organic compounds” is false.

Explanation of Solution

An alkyl group is an alkane which has a deficiency of a single hydrogen atom. It has the general formula CnH2n+1. Since an alkyl group does not alter the chemical properties but only the physical properties of a compound, hence it cannot be classified as a different class of organic compound.

Conclusion

The statement “alkyl groups are a class of organic compounds” is false.

Interpretation Introduction

(g)

Interpretation:

Whether the statement “isomers have the same molecular formulas but different structural formulas” is true or false is to be determined.

Concept Introduction:

Isomers are two or more molecules which have the same molecular formula but differ structurally. The two main forms of isomerism are structural isomerism and stereoisomerism.

When the atoms and functional are arranged in different ways, structural isomerism is exhibited. The types of structural isomerism are, chain, position, functional group metamerism and tautomerism.

Stereoisomers are those in which the spatial arrangement of atoms and functional groups is different. The two types of stereoisomers are geometrical and optical. In geometrical isomerism, the isomers possess the same structural formula but the spatial arrangement of the groups around the double bond. This isomerism is exhibited by alkenes and its derivatives. Optical isomerism is generally exhibited by molecules containing asymmetric carbon atoms. This results in two isomers which are mirror images of one another.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “isomers have the same molecular formulas but different structural formulas” is true.

Explanation of Solution

The structures of two isomers, pentane and 2-methylbutane are depicted below

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  5

Both pentane and 2-methylbutane have the same molecular formula C5H12, but their structures are different. The structural change has led to the shortening of the hydrocarbon chain in 2-methylbutane.

Conclusion

The statement “isomers have the same molecular formulas but different structural formulas” is true.

Interpretation Introduction

(h)

Interpretation:

Whether the statement “cis-trans isomerism appears among alkenes but not alkynes” is true or false is to be determined.

Concept Introduction:

Stereoisomers are those in which the spatial arrangement of atoms and functional groups is different. The two types of stereoisomers are geometrical and optical. In geometrical isomerism, the isomers possess the same structural formula but the spatial arrangement of the groups around the double bond. This isomerism is exhibited by alkenes and its derivatives.

When similar groups lie on the same side, it is referred to as cis isomerism. When similar groups lie on the opposite sides, it is referred to as trans isomerism.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “cis-trans isomerism appears among alkenes buy not alkynes” is true.

Explanation of Solution

When the two same groups are on the same side of the double bond then is known as cis-isomer and when the two same groups are on the opposite side of the double bond then is known trans-isomer.

The condition for cis-trans isomerism is that the double bonded carbon atoms must have two different substituents attached at each end.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  6

In alkenes, carbon atoms are bonded to three other atoms/groups due to their sp2 hybridization. Hence the spatial arrangement of alkenes allows them to have cis-trans isomerism. Like, in the case of 1,2-dichloroethane below

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  7

In alkynes, each carbon atom can bond with two other atoms only. To show cis-trans isomerism there must present two groups on each carbon atom. Therefore, alkynes cannot show cis-trans isomerism. Like in the case of acetylene below

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  8

Conclusion

The statement “cis-trans isomerism appears among alkenes buy not alkynes” is true.

Interpretation Introduction

(i)

Interpretation:

Whether the statement “all aliphatic hydrocarbons are unsaturated” is true or false is to be determined.

Concept Introduction:

Aliphatic compounds are those hydrocarbons which contain carbon and hydrogen joined together in straight chains, branched chains or non-aromatic rings. The simplest aliphatic compound is the molecule of methane (CH4). Most aliphatic compounds are flammable, allowing the use of hydrocarbons as fuel. Aliphatic hydrocarbons include carbon chains of straight, branched and non-aromatic ringed compounds.

The structures of aliphatic hydrocarbons are below:

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  9

Expert Solution
Check Mark

Answer to Problem 96E

The statement “all aliphatic hydrocarbons are unsaturated” is false.

Explanation of Solution

Aliphatic compounds are the hydrocarbons in which carbon and hydrogen are linked in a single chain, branches or non-aromatic rings. Aliphatic hydrocarbons include both saturated and unsaturated hydrocarbons. Hence the statement “all aliphatic hydrocarbons are unsaturated” is false.

Conclusion

The statement “all aliphatic hydrocarbons are unsaturated” is false.

Interpretation Introduction

(j)

Interpretation:

Whether the statement “aromatic hydrocarbons have a ringed structure” is true or false is to be determined.

Concept Introduction:

Aromatic hydrocarbons exhibit aromaticity. Aromaticity is a property exhibited by conjugated cycloalkenes in which the stability is gained by the delocalisation of the electrons in the pi-orbitals. Aromatic hydrocarbons contain one or more benzene rings. Benzene is the simplest aromatic hydrocarbon. Those hydrocarbons which do not contain a benzene ring are called aliphatic hydrocarbons.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “aromatic hydrocarbons have a ringed structure” is true.

Explanation of Solution

For a compound to be aromatic, there are three pre-requisites. Those are as follows:

The compound must be cyclic

The compound must be planar

The compound must follow huckel’s rule

The foremost condition for a compound to exhibit aromaticity requires it to have a ringed structure. Hence the statement “aromatic hydrocarbons have a ringed structure” is true.

Conclusion

The statement “aromatic hydrocarbons have a ringed structure” is true

Interpretation Introduction

(k)

Interpretation:

Whether the statement “an alcohol has one alkyl group bonded to an oxygen atom, and ether has two” is true or false is to be determined.

Concept Introduction:

Alcohols are organic compounds containing a OH group. They are named from the parent alkane by dropping the “-e” from the end of the alkane and replacing it with an “-ol”. Polyhydric alcohols have more than one OH group and are named diol for 2 and triol for 3. Alcohols form hydrogen bonds and hence have a much higher boiling point than their corresponding alkanes.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  10

Ethers are organic compounds containing an oxygen atom intervened between two alkyl groups. Ethers are derived from alkanes by replacing a hydrogen atom for an alkoxy group. The structure of ethers is not held together by hydrogen bonds. Due to very low polarity, ethers are not very well soluble in water.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  11

Expert Solution
Check Mark

Answer to Problem 96E

The statement “an alcohol has one alkyl group bonded to an oxygen atom, and ether has two” is true.

Explanation of Solution

A water molecule has a structure as follows

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  12

Removal of a hydrogen atom gives us the hydroxyl group. This functional group is classified as alcohol. When one of the hydrogen atoms is replaced by an alkyl group an alcohol is formed.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  13

Replacement of both the hydrogen atoms by an alkyl group each produces an ether molecule. Hence in this condition, the oxygen atom is bonded to two alkyl groups.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  14

Conclusion

The statement “an alcohol has one alkyl group bonded to an oxygen atom, and ether has two” is true.

Interpretation Introduction

(l)

Interpretation:

Whether the statement “carbonyl groups are found in alcohols and aldehydes” is true or false is to be determined.

Concept Introduction:

Carbonyl compounds are molecules containing the carbonyl group. Compounds containing carbonyl groups are called aldehydes and ketones. In aldehydes, the carbonyl group is on the end of a carbon chain, while in ketones, it is in the middle of the carbon chain. The names of aldehydes and ketones are simply derived by dropping "-e" from the root and adding "-al" or "-one" respectively.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “carbonyl groups are found in alcohols and aldehydes” is false.

Explanation of Solution

A carbonyl group is a functional group in which a carbon atom is doubly bonded to an oxygen atom. In aldehydes, the oxygen atom is doubly bonded to a carbon atom. Hence aldehydes are carbonyl compounds. In alcohols, the oxygen atom is bonded to a carbon atom through a single bond and also with a hydrogen atom with a single bond. Hence alcohols cannot be classified as carbonyl compounds.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  15

Conclusion

The statement “carbonyl groups are found in alcohols and aldehydes” is false.

Interpretation Introduction

(m)

Interpretation:

Whether the statement “an ester is an aromatic hydrocarbon, made by the reaction of an alcohol with a carboxylic acid” is true or false is to be determined.

Concept Introduction:

Esters are derivatives of carboxylic acids. Esters are more polar than ethers but less polar than alcohols. There is no intra-molecular hydrogen bonding in esters and hence their boiling points are significantly lower than those of acid with the same number of carbon atoms. Esters have pleasant odours and give characteristic smell to fruits and flowers.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  16

Expert Solution
Check Mark

Answer to Problem 96E

The statement “an ester is an aromatic hydrocarbon made by the reaction of an alcohol with a carboxylic acid” is false.

Explanation of Solution

An ester is an organic compound with a general formula RCOOR'. In other words, an ester is a carboxylic acid in which one hydroxyl group is replaced by an alkoxy group. The reaction of a carboxylic acid with an alcohol in the presence of an acid catalyst gives esters.

Esters can be both aliphatic and aromatic. Hence the statement “an ester is an aromatic hydrocarbon made by the reaction of an alcohol with a carboxylic acid” is false”.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  17

Conclusion

The statement “an ester is an aromatic hydrocarbon made by the reaction of an alcohol with a carboxylic acid” is false.

Interpretation Introduction

(n)

Interpretation:

Whether the statement “an amine has one, two, or three alkyl groups substituted for hydrogens in an ammonia molecule” is true or false is to be determined.

Concept Introduction:

Amines are compounds which contain a base nitrogen atom with a lone pair. The lower aliphatic amines are gaseous in nature. Lower aliphatic amines can form hydrogen bonds with water molecules. Hence such amines are water soluble. As the number of alkyl groups increases in the amines, their hydrophobic nature increases as well and hence, the solubility in water decreases. Primary and secondary amines are often engaged in the intermolecular association as a result of hydrogen bonding between the nitrogen of one and hydrogen of another molecule. In tertiary amines, there is no such association. Hence the order of boiling points of amines follows the order, Primary > Secondary > Tertiary.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “an amine has one, two or three alkyl groups substituted for hydrogens in an ammonia molecule” is true.

Explanation of Solution

Amines are called, the organic derivatives of ammonia. In an ammonia molecule, one nitrogen atom is bonded to three hydrogen atoms. When one, two or three hydrogen atoms are replaced by either an alkyl or an aryl group amine is formed. Replacement of one hydrogen atom by an alkyl group gives primary amine. Replacement of two hydrogen atoms gives secondary amines, whereas all the three hydrogen atoms when replaced by alkyl/aryl groups, tertiary amines are formed.

Conclusion

The statement “an amine has one, two or three alkyl groups substituted for hydrogens in an ammonia molecule” is true.

Interpretation Introduction

(o)

Interpretation:

Whether the statement “an amide has the structure of a carboxylic acid, except that NH2 replaces OH in the carboxyl group” is true or false is to be determined.

Concept Introduction:

Amides are organic compounds represented as RCONH2. Amides are derived from carboxylic acids. Amides have the ability to form hydrogen bonds and hence they are soluble in water. This also imparts higher melting points for their molecular size Unlike amines, amides do not show appreciable basicity, hence they are not basic in nature.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “an amide has the structure of a carboxylic acid, except that NH2 replaces OH in the carboxyl group” is true.

Explanation of Solution

Amides are the derivatives of carboxylic acids in which the hydroxyl group is replaced by an amine.

The structures of an amide and a carboxylic acid are depicted below.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  18

It is clear from the structures that in the amide, the NH2 group has replaced the OH group. Hence the statement, “an amide has the structure of a carboxylic acid, except that NH2 replaces OH in the carboxyl group” is true.

Conclusion

The statement “an amide has the structure of a carboxylic acid, except that NH2 replaces OH in the carboxyl group” is true

Interpretation Introduction

(p)

Interpretation:

Whether the statement “a peptide linkage arises when a water molecule forms from a hydrogen from the NH2 group of one amino acid molecule and a OH from another amino acid molecule” is true or false is to be determined.

Concept Introduction:

Peptide bond is formed when the carbonyl group of one amino acid becomes linked to the amino group of another to form a peptide. Amino acids in protein are joined together by peptide bonds.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “a peptide linkage arises when a water molecule forms from a hydrogen from the NH2 group of one amino acid molecule and a OH from another amino acid molecule” is true.

Explanation of Solution

The formation of a peptide bond is a condensation reaction in which a water molecule is eliminated. Amino acids combine together to form polypeptides. A peptide bond is formed between two molecules of amino acids when the carboxyl group of one molecule reacts with the amino group of the other amino acid molecule. A molecule of water is released in the process.

A diagrammatic representation of peptide linkage formation is as follows,

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  19

Conclusion

The statement “a peptide linkage arises when a water molecule forms from a hydrogen from the NH2 group of one amino acid molecule and a OH from another amino acid molecule” is true.

Interpretation Introduction

(q)

Interpretation:

Whether the statement “forming cross-links in a polymer makes the polymer more likely to possess low mechanical strength” is true or false is to be determined.

Concept Introduction:

Based on the structures, polymers are classified as follows:

Linear polymers – In this category of polymers, the monomer units join each other to form long straight chains.

Branched polymers – When linear chain polymers undergo branching, they form branched chain polymers. They have low density and melting points. The melting point decreases upon increase in branching.

Cross linked polymers – These polymers are formed by formation of covalent bonds between multiple linear polymer chains.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “forming cross-links in a polymer makes the polymer more likely to possess low mechanical strength” is false.

Explanation of Solution

A cross-link is a bond in which one polymer chain is linked to another chain. These links may either be covalent or ionic in nature. Formation of cross-links increases the molar mass of the polymer chain and hence the mechanical strength of the polymer increases.

Conclusion

The statement “forming cross-links in a polymer makes the polymer more likely to possess low mechanical strength” is false.

Interpretation Introduction

(r)

Interpretation:

Whether the statement “chain-growth polymers are made by a reaction that gives off water as a second product” is true or false is to be determined.

Concept Introduction:

Based on the modes of polymerization, polymers are classified as follows:

Addition polymers – Addition polymers are formed by repeated addition of the monomer units. The monomer units are unsaturated hydrocarbons generally. There is no elimination of molecules in the reaction.

Condensation polymers – Condensation polymers are formed by repeated condensation between two different monomer units along with the formation of elimination products like water.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “chain-growth polymers are made by a reaction that gives off water as a second product” is false.

Explanation of Solution

The polymerization process by which water is released as a second product is called condensation or step growth polymerization. Chain growth polymers are made by addition or chain growth reactions. The monomer units in addition polymerization are unsaturated. The polymerization begins when one bond of the double bond between carbon atoms is broken in a molecule. This generates a new monomer with a broken bond. Each successive carbon atom is hence left with an unshared electron with which it forms a bond with a neighbouring molecule.

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  20

Conclusion

The statement “chain-growth polymers are made by a reaction that gives off water as a second product” is false.

Interpretation Introduction

(s)

Interpretation:

Whether the statement “nylon is an example of a step-growth condensation polymerization” is true or false is to be determined.

Concept Introduction:

Polymerization is a process in which two or more monomer units combine to form long chains or three dimensional networks.

Based on the modes of polymerization, polymers are classified as follows:

Addition polymers – Addition polymers are formed by repeated addition of the monomer units. The monomer units are unsaturated hydrocarbons generally. There is no elimination of molecules in the reaction.

Condensation polymers – Condensation polymers are formed by repeated condensation between two different monomer units along with the formation of elimination products like water.

Expert Solution
Check Mark

Answer to Problem 96E

The statement “nylon is an example of a step-growth condensation polymerization” is true.

Explanation of Solution

Nylon 6-6 is made by the condensation polymerization of hexa-methylenediamine and adipic acid. A water molecule is eliminated after it is formed by the combination of a OH group from one of the COOH groups of the adipic acid and a hydrogen atom from one of the NH2 groups of the hexa-methylenediamine molecule.

The reaction is,

Introductory Chemistry: An Active Learning Approach, Chapter 21, Problem 96E , additional homework tip  21

Conclusion

The statement “nylon is an example of a step-growth condensation polymerization” is true.

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Chapter 21 Solutions

Introductory Chemistry: An Active Learning Approach

Ch. 21 - Prob. 11ECh. 21 - Prob. 12ECh. 21 - Prob. 13ECh. 21 - Prob. 14ECh. 21 - Prob. 15ECh. 21 - Prob. 16ECh. 21 - Prob. 17ECh. 21 - Prob. 18ECh. 21 - Prob. 19ECh. 21 - Prob. 20ECh. 21 - Prob. 21ECh. 21 - Prob. 22ECh. 21 - Is the general formula of a cycloalkanes the same...Ch. 21 - Prob. 24ECh. 21 - Draw the skeleton diagram of cyclopentane.Ch. 21 - Prob. 26ECh. 21 - Prob. 27ECh. 21 - Prob. 28ECh. 21 - Prob. 29ECh. 21 - Prob. 30ECh. 21 - Prob. 31ECh. 21 - Prob. 32ECh. 21 - Prob. 33ECh. 21 - Prob. 34ECh. 21 - Prob. 35ECh. 21 - Prob. 36ECh. 21 - What is the difference in bonding and in the...Ch. 21 - Prob. 38ECh. 21 - Draw the structural formula of trichloroethene, a...Ch. 21 - Prob. 40ECh. 21 - Prob. 41ECh. 21 - Prob. 42ECh. 21 - Prob. 43ECh. 21 - Prob. 44ECh. 21 - Give the IUPAC name of the following molecule:Ch. 21 - Give the IUPAC name of the following molecule:Ch. 21 - Prob. 47ECh. 21 - Prob. 48ECh. 21 - Prob. 49ECh. 21 - Prob. 50ECh. 21 - Prob. 51ECh. 21 - Prob. 52ECh. 21 - Prob. 53ECh. 21 - Prob. 54ECh. 21 - Write an equation for the hydrogenation of...Ch. 21 - Prob. 56ECh. 21 - Prob. 57ECh. 21 - Prob. 58ECh. 21 - Prob. 59ECh. 21 - Explain why the ether with formula C2H6O is very...Ch. 21 - Prob. 61ECh. 21 - Prob. 62ECh. 21 - Prob. 63ECh. 21 - Prob. 64ECh. 21 - Prob. 65ECh. 21 - Prob. 66ECh. 21 - Prob. 67ECh. 21 - Prob. 68ECh. 21 - Prob. 69ECh. 21 - Prob. 70ECh. 21 - Prob. 71ECh. 21 - Prob. 72ECh. 21 - Prob. 73ECh. 21 - Prob. 74ECh. 21 - Prob. 75ECh. 21 - Prob. 76ECh. 21 - Prob. 77ECh. 21 - Prob. 78ECh. 21 - Prob. 79ECh. 21 - Prob. 80ECh. 21 - Prob. 81ECh. 21 - Prob. 82ECh. 21 - Prob. 83ECh. 21 - Prob. 84ECh. 21 - Prob. 85ECh. 21 - Prob. 86ECh. 21 - Prob. 87ECh. 21 - Prob. 88ECh. 21 - Prob. 89ECh. 21 - Prob. 90ECh. 21 - Prob. 91ECh. 21 - Prob. 92ECh. 21 - Prob. 93ECh. 21 - Prob. 94ECh. 21 - Distinguish precisely, and in scientific terms,...Ch. 21 - Prob. 96ECh. 21 - What is the difference in bonding and in general...Ch. 21 - Draw all isomers of C4H8.Ch. 21 - Prob. 99ECh. 21 - Prob. 100ECh. 21 - Prob. 101ECh. 21 - Prob. 102ECh. 21 - Prob. 103ECh. 21 - Prob. 104ECh. 21 - Prob. 105ECh. 21 - Prob. 106ECh. 21 - Prob. 107ECh. 21 - Prob. 21.1TCCh. 21 - Prob. 21.2TCCh. 21 - Prob. 21.3TCCh. 21 - Prob. 21.4TCCh. 21 - Prob. 21.5TCCh. 21 - Prob. 21.6TCCh. 21 - Prob. 21.7TCCh. 21 - Prob. 21.8TCCh. 21 - Prob. 21.9TCCh. 21 - Prob. 21.10TCCh. 21 - Prob. 21.11TCCh. 21 - Prob. 21.12TCCh. 21 - Prob. 1CLECh. 21 - Prob. 2CLECh. 21 - Prob. 3CLECh. 21 - Prob. 4CLECh. 21 - Prob. 5CLECh. 21 - Prob. 6CLECh. 21 - Prob. 7CLECh. 21 - Prob. 8CLECh. 21 - Prob. 9CLECh. 21 - Prob. 10CLE
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