Loss of a nucleophile Study guides, Class notes & Summaries
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Chem 210 Exam 3 questions and answers
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what factors explain the outcomes of reactions? 
hybridization, delocalization, eN, atom density 
 
 
 
what is a leaving group? 
- group of atom(s) that can be stable on its own 
- eN atoms that are good LG also make strong acids 
 
 
 
what is the α carbon? 
C directly attached to leaving group 
 
 
 
what are β Cs? β Hs? 
βC: C(s) attached to α carbon 
βH: H(s) attached to βC 
 
 
 
what is a LB? is it a nucleophile or electrophile? 
lewis base, nucleophile 
 
 
 
what is nucleophilic ...
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CHE 230 Exam 3 Dr. Owen UKY Questions With Complete Solutions
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What is an electrophile? correct answer: compound or ion that are poor in electron density- LOVES AVAILABLE ELECTRONS 
 
Same as Lewis Acid 
 
What is a nucleophile? correct answer: is an ion or a compound that is capable of donating a pair of electrons-- THEY WOULD LOVE TO ATTACK A NUCLEUS 
 
 
These are the exact same a Lewis Base 
 
THESE SHARE ELECTRON DENSITY 
 
Examples of Nucleophiles correct answer: I-, Cl-, Br-, HS-, RO-, HO-,NH2- 
 
Nucleophilic Attack correct answer: shows the nuc...
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UMICH CHEM 210 - Exam #3 - Reaction Mechanisms 100% Correct.
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SN1 Reaction - ANSWER- Unimolecular nucleophilic substitution 
- 2 steps 
- Starting with enantiomerically pure product tends to result in some degree of racemization 
- Retention AND inversion at stereocenter (R and S) 
- 1 nucleophile is replaced by another nucleophile 
- Carbocation INTERMEDIATE forms 
- Rate is dependent only on substrate concentration 
 
1. LG leaves, forming a carbocation 
2. Nucleophile attacks the carbocation, forming the product 
 
SN2 Reaction - ANSWER- Bimolecular nuc...
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Portage Learning Chem 210 Biochemistry Exam 2 Questions & Answers 2023/2024
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Covalent Catalysis - ANSWER-Active site contains a reactive group 
(Nucleophile) 
General Acid-Base Catalysis - ANSWER-Molecule (other than Water) acts as a 
proton donor or acceptor 
Metal Ion Catalysis - ANSWER-Metal ion serves as an electrophilic catalyst and 
stabilizes reaction intermediate 
Temperature - ANSWER-As temperature rises, reaction rate increases; loss of 
activity at high temperature 
pH - ANSWER-Activity of most enzymes is bell-shaped; optimal pH varies with 
enzyme 
Reversible...
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DAT Test Bank Questions with Answers 100% correct | 2024 update
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DAT Test Bank Questions with Answers 100% correct | 2024 update 
 
DAT Test Bank Questions with Answers 100% correct | 2024 update 
Contains marking scheme 
 
Survey of Natural Sciences 
 
 
Which of the following viral genomes can be directly translated into protein by the host cell’s translation machinery? 
 	Double-stranded DNA 
 
 	Single-stranded DNA, coding (+) strand 	Double-stranded RNA 
 	Single-stranded RNA, coding (+) strand 
 
 	Single-stranded RNA, template (–) strand 
 
 
 
 	...
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Chem 210 Exam 3 Questions with Correct Solutions| Rated A+
- Exam (elaborations) • 9 pages • 2023
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what factors explain the outcomes of reactions? - hybridization, delocalization, eN, atom density 
 
what is a leaving group? - - group of atom(s) that can be stable on its own 
- eN atoms that are good LG also make strong acids 
 
what is the α carbon? - C directly attached to leaving group 
 
what are β Cs? β Hs? - βC: C(s) attached to α carbon 
βH: H(s) attached to βC 
 
what is a LB? is it a nucleophile or electrophile? - lewis base, nucleophile 
 
what is nucleophilic ...
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AAMC FL 1 FULL REVIEW- Chem-Phys Exam Questions and Answers
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AAMC FL 1 FULL REVIEW- Chem-Phys 
Exam Questions and Answers 
In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the 
stationary phase. What was the principal factor determining the migration of individual 
components in the sample? 
A.Hydrogen bonding 
B.Solute concentration 
C.Stationary phase concentration 
D.Thickness of paper -Answer-B and D are dumb options. Knock them out. 
hydrogen bonding to the stationary phase will determine the relative rate of m...
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AAMC FL 1 FULL REVIEW- Chem/Phys exam questions fully solved & verified for accuracy 2024
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In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? 
 
A.Hydrogen bonding 
B.Solute concentration 
C.Stationary phase concentration 
D.Thickness of paper 
B and D are dumb options. Knock them out. 
 
hydrogen bonding to the stationary phase will determine the relative rate of migration of the various components in the sample. 
 
When thinking ...
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UNIT 1 UNE CHEM 1005 EXAM QUESTIONS AND ANSWERS
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UNIT 1 UNE CHEM 1005 EXAM QUESTIONS AND ANSWERS 
 
Hemoglobin binds oxygen with a greater affinity in the: 
R state 
Hemoglobin bound to heme is termed a holoprotein. The heme or porphoryin ring is required for oxygen binding and it is termed a: 
prosthetic group 
Alpha helices and beta sheets are primarily stabilized by: 
H bonding 
Ligases are a class of enzymes characterized by their ability to: 
synthesize bonds between carbon atoms and an additional atom that is involved in the cleavage of ...
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AAMC FL 1 FULL REVIEW- Chem/Phys correctly answered 2023
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AAMC FL 1 FULL REVIEW- Chem/Phys correctly answered 2023In the chromatography of the reaction mixture, water absorbed on cellulose functioned as the stationary phase. What was the principal factor determining the migration of individual components in the sample? 
 
A.Hydrogen bonding 
B.Solute concentration 
C.Stationary phase concentration 
D.Thickness of paper - correct answer B and D are dumb options. Knock them out. 
 
hydrogen bonding to the stationary phase will determine the relative rat...