Chemistry for Today: General, Organic, and Biochemistry
9th Edition
ISBN: 9781305960060
Author: Spencer L. Seager, Michael R. Slabaugh, Maren S. Hansen
Publisher: Cengage Learning
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Chapter 12, Problem 12.14E
What type of orbital overlaps to form a pi bond in an
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Mark the correct statements about the structural features of alkenes and alkynes. *
A- Free rotation is not possible around a double or triple bond.
B- A triple bond is shorter and stronger than a double bond.
C- A pi-bond can only form by overlap of p-orbitals on adjacent atoms if these atoms are from the same element.
D- The pi-bond in an alkene is weaker than the sigma bond because the sideways overlap of p-orbitals is less than the head-to-head overlap of sp² hybrid orbitals.
E- All the bond angles in an alkyne are 180°.
Which piece of information do you need to determine whether a molecule is
an alkyne or an alkene?
A. The type of C-H bonds in the molecule
B. The number of C-H bonds in the molecule
C. The type of C-C bonds in the molecule
D. The number of C-C bonds in the molecule
What are the characteristic hybrid orbitals of alkanes? So what are the approximate bond angles in an alkane?
Chapter 12 Solutions
Chemistry for Today: General, Organic, and Biochemistry
Ch. 12 - Prob. 12.1ECh. 12 - Define the terms alkene, alkyne, and aromatic...Ch. 12 - Select those compounds that can be correctly...Ch. 12 - Prob. 12.4ECh. 12 - Give the IUPAC name for the following compounds:...Ch. 12 - Prob. 12.6ECh. 12 - Prob. 12.7ECh. 12 - Prob. 12.8ECh. 12 - Prob. 12.9ECh. 12 - Prob. 12.10E
Ch. 12 - Prob. 12.11ECh. 12 - Prob. 12.12ECh. 12 - What type of hybridized orbital is present on...Ch. 12 - What type of orbital overlaps to form a pi bond in...Ch. 12 - Prob. 12.15ECh. 12 - Explain the difference between geometric and...Ch. 12 - Draw structural formulas and give IUPAC names for...Ch. 12 - Prob. 12.18ECh. 12 - Which of the following alkenes can exist as...Ch. 12 - Draw structural formulas for the following:...Ch. 12 - Prob. 12.21ECh. 12 - In what ways are the physical properties of...Ch. 12 - Prob. 12.23ECh. 12 - Prob. 12.24ECh. 12 - Complete the following reactions. Where more than...Ch. 12 - Prob. 12.26ECh. 12 - Prob. 12.27ECh. 12 - What reagents would you use to prepare each of the...Ch. 12 - What is an important commercial application of...Ch. 12 - Prob. 12.30ECh. 12 - Terpin hydrate is used medicinally as an...Ch. 12 - Prob. 12.32ECh. 12 - Prob. 12.33ECh. 12 - Prob. 12.34ECh. 12 - Prob. 12.35ECh. 12 - Much of todays plumbing in newly built homes is...Ch. 12 - Prob. 12.37ECh. 12 - What type of hybridized orbital is present on...Ch. 12 - How many sigma bonds and how many pi bonds make up...Ch. 12 - Prob. 12.40ECh. 12 - Explain why geometric isomerism is not possible in...Ch. 12 - Give the common name and major uses of the...Ch. 12 - Describe the physical and chemical properties of...Ch. 12 - Prob. 12.44ECh. 12 - Prob. 12.45ECh. 12 - Prob. 12.46ECh. 12 - Prob. 12.47ECh. 12 - Prob. 12.48ECh. 12 - Limonene, which is present in citrus peelings, has...Ch. 12 - A disubstituted cycloalkane such as a exhibits...Ch. 12 - Prob. 12.51ECh. 12 - Prob. 12.52ECh. 12 - Give an IUPAC name for the following as...Ch. 12 - Give an IUPAC name for the following as...Ch. 12 - Name the following compounds, using the prefixed...Ch. 12 - Name the following compounds, using the prefixed...Ch. 12 - Name the following by numbering the benzene ring....Ch. 12 - Name the following by numbering the benzene ring....Ch. 12 - Prob. 12.59ECh. 12 - Write structural formulas for the following:...Ch. 12 - Prob. 12.61ECh. 12 - Prob. 12.62ECh. 12 - Prob. 12.63ECh. 12 - Prob. 12.64ECh. 12 - Prob. 12.65ECh. 12 - Prob. 12.66ECh. 12 - Prob. 12.67ECh. 12 - Prob. 12.68ECh. 12 - Prob. 12.69ECh. 12 - Prob. 12.70ECh. 12 - Prob. 12.71ECh. 12 - Prob. 12.72ECh. 12 - Prob. 12.73ECh. 12 - Prob. 12.74ECh. 12 - Prob. 12.75ECh. 12 - Prob. 12.76ECh. 12 - Prob. 12.77ECh. 12 - Prob. 12.78ECh. 12 - Prob. 12.79ECh. 12 - Prob. 12.80ECh. 12 - Prob. 12.81ECh. 12 - Prob. 12.82ECh. 12 - Prob. 12.83ECh. 12 - The compound CH2=CHCH2CH2CH3 is an example of: a....Ch. 12 - The correct structural for ethyne is: a. HC=CH b....Ch. 12 - Prob. 12.86E
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- What is the difference in bonding and in the general molecular formula between an alkene and an alkane with the same number of carbon atoms?arrow_forwardHC CH, Lab Workshop 5: Nomenclature of alkane and cycloalkanes Each student work group choose a Leader (reads activity out loud, poses questions to group), Facilitator (makes sure everyone is participating equally, directs the conversation), Recorder (takes note on discussion, learned concepts and any conclusions), and Presenter (announces conclusions or presents activity to class). A. Nomenclature of Unbranched Alkanes (IUPAC System – International Union of Pure and Applied Chemistry) Alkane = molecule consisting entirely of carbon and hydrogen atoms connected by single bonds. Critical Thinking Question (CTQ): 1. Cross out each molecule that is not an alkane H2 H3C `CH3 HạC CH `CH3 H,C CH H3C H3C `CH3 HO H3C CH3 Memorization Task 1: Unbranched Alkanes NAME Structure # carbon atoms methane CH4 CH;CH; CH;CH;CH; ethane propane butane CH;(CH2);CH3 CH3(CH2);CH3 CH;(CH2),CH3 CH;(CH2),CH3 4 5 pentane hexane 6 heptane octane CH3(CH2),CH3 8. CH3(CH2);CH3 CH3(CH2);CH3 CH3(CH2)»CH3 CH3(CH2)10CH3…arrow_forwardWhat is the purpose of the crystallization technique in organic chemistry? to run a chemical reaction that will yield a unique product to determine whether a compound is soluble in a specific solvent a purification technique for impure solids a way to turn a liquid compound into a solidarrow_forward
- Indicate whether each molecule is an aliphatic or an aromatic hydrocarbon. If it is aliphatic, identify the molecule as an alkane, an alkene, or an alkyne. Separate your answer with a dash. Example. ALIPHATIC HYDROCARBON-CYCLOALKANE * H H H. TH. Harrow_forwardWhat are the different types of alkyne reactions and what are some examples of them?arrow_forwardOne test for the presence of an alkene is to add a small amount of bromine, which is a red-brown liquid, and look for the disappearance of the red-brown color. This test does not work for detecting the presence of an aromatic hydrocarbon. Explain.arrow_forward
- Draw a Lewis Structure of an alkenearrow_forwardWhat is the major difference between the hydration of an alkene and the hydration of an alkyne?arrow_forwardFind the incorrect statement about alkynes. * A- Alkynes do not show isomerism. B- The triple bond of an alkyne is shorter than the single bond in an alkane. C- A pi-bond in an alkyne is formed by sideways overlap of p orbitals standing perpendicular on sp hybridised carbon atoms. D- All of these statements are correct. E- None of these statements are correct.arrow_forward
- How does the structure of an alcohol differ from an ether? Describe how an aldehyde differs in structure from a ketone. Thiols are compounds which resemble alcohols, except that the oxygen atom is replaced by a sulfur atom. Draw the analogous thiol for the four carbon alcohol in Table 1. Describe the structural difference between carboxylic acids and esters. Are ethers polar molecules? Would you expect ethers to have higher or lower boiling points than alkanes (circle one)? Explain. Pentane (an alkane) has a boiling point of 36 °C. Does the data agree with your prediction? explain why this could be the casearrow_forwardIs the reaction between an alkene and a halogen a substitution reaction(displacement reaction) or another reaction? Explain the reaction mechanism by giving an example.arrow_forwardBriefly describe the physical properties of alkenes. How do these properties compare to those of the alkanes? What is the principal difference in properties between alkenes and alkanes? How are they alike?arrow_forward
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Chapter 4 Alkanes and Cycloalkanes Lesson 2; Author: Linda Hanson;https://www.youtube.com/watch?v=AL_CM_Btef4;License: Standard YouTube License, CC-BY
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