Axial lone pairs - Study guides, Class notes & Summaries
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ACS Chemistry Final Exam 182 Questions with Verified Answers,100% CORRECT
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ACS Chemistry Final Exam 182 Questions with Verified Answers 
 
Layout of an element (mass # & atomic #) - CORRECT ANSWER 
 
atomic number = - CORRECT ANSWER # of protons 
 
mass number = - CORRECT ANSWER # of protons + neutrons 
 
the number of protons in a neutral atom will equal the - CORRECT ANSWER # of electrons 
 
how to find the correct number of neutrons - CORRECT ANSWER mass number - atomic number 
 
Forms of the same elements that differ in amount of neutrons - CORRECT ANSWER isotopes...
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Chem 210 Exam 1 questions with 100% correct answers.
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sp Hybridization 
2 SP + 2 π orbital 
Linear geometry at carbon 
 
 
 
sp² Hybridization 
3 SP + 1 π orbital 
Trigonal planar geometry at carbon 
 
 
 
sp³ Hybridization 
4 SP orbitals 
Tetrahedral geometry 
 
 
 
Antibonding MOs 
Destructive interference waves created by high energy electrons in MO models (Node is always present in antibonds) 
 
 
 
Bonding MOs 
Constructive interference waves created by lower energy electrons in MO models (No nodes, but beware of node-like low-probability ...
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Test Bank For Fundamentals of Organic Chemistry 7th Edition By John E. McMurry -
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Chapter 1-Structure and Bonding:Acids and Bases 
1. How many total valence electrons are represented in the following electron configuration? 1s22s22px2 2py2 2pz1 or 1s22s22p5 
a. 1 b. 3 c. 5 d. 7 e. 9 
ANS: D 
Instructions: Write valid Lewis (electron-dot) structures for each formula below. Show all electrons as dots and show all nonbonding electrons. 
2. Write: 
CH3CH2OH ethanol 
ANS: 
3. The structure of urea is shown below. Fill in any nonbonding valence electrons that are missing from the l...
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Solution Manual for Organic Chemistry Mechanistic Patterns Canadian 1st Edition Ogilvie Ackroyd Br
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Chapter 1 
Carbon and Its Compounds 
CHECKPOINT PROBLEMS 
Practice Problem 1.1 
a) S — 1s2 
2s2 
2p6 
3s2 
3p4 
b) Cl — 1s2 
2s2 
2p6 
3s2 
3p5 
c) Na+ — 1s2 
2s2 
2p6 
1-2 Copyright © 2018 Nelson Education Limited 
Practice Problem 1.2 
a) Count valence electrons. 
Build a basic bonding framework and account for electrons used. 
Add remaining electrons and check for formal charges. 
The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. 
b) Count valence...
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C125 Final with Answers
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PCl5 - Answer- All of the following molecules have all bonds being equivalent except: 
SF6 
CH4 
NH3 
PCl5 
 
lone pair to lone pair - Answer- Which of the following has the largest repulsion, assuming that all the angles between electron pairs are identical? 
 
-They are all the same because they all contain the same number of electrons 
-lone pair to lone pair 
- bonding to bonding pair 
-lone pair to bonding pair 
 
square planar - Answer- What is the molecular geometry of XeF4? 
 
none of ...
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Solution Manual for Organic Chemistry Mechanistic Patterns Canadian 1st Edition by Ogilvie Ackroyd Br
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Chapter 1 Carbon and Its Compounds CHECKPOINT PROBLEMS Practice Problem 1.1 a) S — 1s2 2s2 2p6 3s2 3p4 b) Cl — 1s2 2s2 2p6 3s2 3p5 c) Na+ — 1s2 2s2 2p6 1-2 Copyright © 2018 Nelson Education Limited Practice Problem 1.2 a) Count valence electrons. Build a basic bonding framework and account for electrons used. Add remaining electrons and check for formal charges. The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. b) Count valence electrons. Build a bas...
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Solution Manual for Organic Chemistry Mechanistic Patterns Canadian 1st Edition Ogilvie Ackroyd Br
- Exam (elaborations) • 809 pages • 2024
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Chapter 1 
Carbon and Its Compounds 
CHECKPOINT PROBLEMS 
Practice Problem 1.1 
a) S — 1s2 
2s2 
2p6 
3s2 
3p4 
b) Cl — 1s2 
2s2 
2p6 
3s2 
3p5 
c) Na+ — 1s2 
2s2 
2p6 
1-2 Copyright © 2018 Nelson Education Limited 
Practice Problem 1.2 
a) Count valence electrons. 
Build a basic bonding framework and account for electrons used. 
Add remaining electrons and check for formal charges. 
The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. 
b) Count valence...
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Solution Manual for Organic Chemistry Mechanistic Patterns Canadian 1st Edition Ogilvie Ackroyd Br
- Exam (elaborations) • 811 pages • 2024
-
- $17.99
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Chapter 1 Carbon and Its Compounds CHECKPOINT PROBLEMS Practice Problem 1.1 a) S — 1s2 2s2 2p6 3s2 3p4 b) Cl — 1s2 2s2 2p6 3s2 3p5 c) Na+ — 1s2 2s2 2p6 1-2 Copyright © 2018 Nelson Education Limited Practice Problem 1.2 a) Count valence electrons. Build a basic bonding framework and account for electrons used. Add remaining electrons and check for formal charges. The molecule has a lone pair on the nitrogen. All other electrons are bonding electrons. b) Count valence electrons. Build a bas...
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ACS Organic Chemistry Semester 1 question and answers
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formal charge - Correct Answers: group # - lone pairs (NBE) - bonds (1/2 valence electrons) 
 
valence electrons - Correct Answers: electrons in the outer most shell 
 
Atom - Correct Answers: Smallest particle of an element 
 
protons+neutrons surrounded by electrons 
 
octet rule - Correct Answers: States that atoms lose, gain or share electrons in order to acquire a full set of eight valence electrons 
 
Pauli Exclusion Principle - Correct Answers: An atomic orbital may describe at most ...
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CHEM TEST 3 Question & Answers
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CHEM TEST 3 Question & Answers 
Anti-bonding orbitals * - ANSWER: atomic orbitals subtract (destructive interference) to form 
____ 
these have 1 more node than the individual atomic orbitals, so they are higher in energy 
As the number of lone pairs increase around the central atom, the bond angle decreases. Why? - 
ANSWER: the increase in repulsive forces between lone pair-lone pair electron groups 
Axial position - ANSWER: above and below the plane which the central atom and equatorial 
bonds...
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