Please help me understand the correct answers by stating the correct answers and why it is correct.
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Please help me understand the correct answers by stating the correct answers and why it is correct. 31. Which of the fo...
Please show work and explain! If this problem is graded:50 Problem #10. Furan and thiophene are...
Please show work and explain!
If this problem is graded:50 Problem #10. Furan and thiophene are aromatic heterocycles that are similar in structure to the cyclopentadienyl anion. се a) Which of the following statements are TRUE for all three compounds? I. They are aromatic. II. All of the atoms in the ring are sp hybridized. 111. They are 4π electron systems. IV. They are weak bases. A) I, II, and III B) II and III C) III and IV D)...
please give correct answers to these 4 questions with explanations, thankyou For the reaction below, predict the major...
please give correct answers to these 4 questions with
explanations, thankyou
For the reaction below, predict the major product What makes a chemical species a nucleophile? Select one: a. A chemical species that can accept a proton from an electrophile to form a bond Br-Br b.A chemical species that can donate an electron pair to an electrophile to form a bond C.A chemical species that can donate a neutron to an electrophile to form a bond d. A chemical species...
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV...
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV E) V 31) Which of the following is an aromatic hydrocarbon? IV -CH A)I B C)ID)IVE) V 32) Which of the following conjugated dienes will not react with a dieneophile in a Diels-Alder reaction? Π. IV A) I B)11 C)111 D) IVE) I and III 33) The conjugate acid of the compound shown below is B) aromatic D) antiaromatic. E) none of the above....
please give correct answers to these 3 questions with explanations, thankyou Predict the major product of...
please give correct answers to these 3 questions with
explanations, thankyou
Predict the major product of the following chemical reaction Predict the major product of the following chemical reaction FeBrz + Br2 AICI: Select one Select one: Fe-Br3 The structure below shows the arenium ion (Wheland intermediate) that forms as an intermediate during electrophilic aromatic substitution reactions HE Which of the structures below are a valid resonance form of the arenium ion shown above? Select one: HXH Η Ε c
please give correct answer to these 5 questions with explanations, thankyou Alkenes are nucleophiles that can...
please give correct answer to these 5 questions with
explanations, thankyou
Alkenes are nucleophiles that can undergo electrophilic addition. Which of the following best describes the nucleophilic nature of alkenes? Select one a. The TT bond is localised above and below the C-C o bond, and the TT electrons are relatively far away from the nuclei and are loosely bound b. The bond is localised above and below the C-CT bond, and the electrons are relatively far away from the...
I was wondering if someone could help me with problems on my test my teacher allows me to correct the wrong ones t...
I was wondering if someone could help me with problems on my
test my teacher allows me to correct the wrong ones then give them
back for half credit. Along with the correct answer for each I’d
like to know why the answer I chose is wrong what is the correct
answer and why it is the correct answer. The marked red problems
are the incorrect problems.
17. Which of the following generally indicates the possibility of a chemical change?...
please help in all sections asap!! In a Clemmensen reduction, an aryl ketone is reduced to...
please help in all sections asap!!
In a Clemmensen reduction, an aryl ketone is reduced to an Oaryl aldehyde Caryl alkane aryl carboxylic acid aryl ester aryi anhydride Identify the electrophile for the Friedel-Crafts acylation of benzene. O aluminum tetrachloride anion aluminum chloride acylium ion carbocation carbanion Which of the following criteria is necessary for a nucleophilic aromatic substitution reaction? © A. The ring must contain a very strong electron withdrawing group. B. The ring must contain a leaving group....
26,30.Explain why. 31,32. Explain why. 26. What is the IUPAC name of the following compound? A...
26,30.Explain why.
31,32. Explain why.
26. What is the IUPAC name of the following compound? A 2-Nitro-5-carboxychlorobenzene B. 2-Chloro-4-carboxynitrobenzene 099 2-Chloro-1-nitro-4-benzoic acid D. 3-Chloro-4-nitrobenzoic acid 27. What is the correct structure for para-bromotoluene? Be Meo BE Br Br WI B II C. IL DIV 28. Why is the following compound not aromatic? A It has 4n -electrons. It is not cyclic C. It has 4n+ 2 -electrons D. The p electron orbitals are not continuous 29. What is the hybridization...
could you please help me with these questions. thank you so much 45. What is the...
could you please help me with these questions. thank you so much
45. What is the order of decreasing reactivity of aldehydes, esters and ketones? a. Aldehydes > esters >ketones b. Esters> aldehydes > ketones c. Ketones > esters > aldehydes d. Aldehydes > ketones> esters 46. Which of these will not catalyze the reaction of a weak nucleophile with the carbonyl group of an aldehyde or ketone? (Hint: Look for which is not a Lewis Acid) A) I' B)...
can you guys please give me the correct answers and explain why? 27. Which of the...
can you guys please give me the correct answers and explain
why?
27. Which of the following statements regarding tRNAs is INCORRECT? A. In the folded structure of a tRNA, the anticodon loop is located near the 3' end of the molecule. B. Highly conserved nucleotides de primarily in the "loops" rather than the "stems". C. All tRNAs have the same 3 base sequence at their 3 end. D. All tRNAs contain post-transcriptionally modified nucleotides. E. In most cells, tRNA...
Please show work and explain!
If this problem is graded:50 Problem #10. Furan and thiophene are aromatic heterocycles that are similar in structure to the cyclopentadienyl anion. се a) Which of the following statements are TRUE for all three compounds? I. They are aromatic. II. All of the atoms in the ring are sp hybridized. 111. They are 4π electron systems. IV. They are weak bases. A) I, II, and III B) II and III C) III and IV D)...
please give correct answers to these 4 questions with
explanations, thankyou
For the reaction below, predict the major product What makes a chemical species a nucleophile? Select one: a. A chemical species that can accept a proton from an electrophile to form a bond Br-Br b.A chemical species that can donate an electron pair to an electrophile to form a bond C.A chemical species that can donate a neutron to an electrophile to form a bond d. A chemical species...
30) Which of the following is the most stable diene? L. IV. A)I B) C)III D)IV E) V 31) Which of the following is an aromatic hydrocarbon? IV -CH A)I B C)ID)IVE) V 32) Which of the following conjugated dienes will not react with a dieneophile in a Diels-Alder reaction? Π. IV A) I B)11 C)111 D) IVE) I and III 33) The conjugate acid of the compound shown below is B) aromatic D) antiaromatic. E) none of the above....
please give correct answers to these 3 questions with
explanations, thankyou
Predict the major product of the following chemical reaction Predict the major product of the following chemical reaction FeBrz + Br2 AICI: Select one Select one: Fe-Br3 The structure below shows the arenium ion (Wheland intermediate) that forms as an intermediate during electrophilic aromatic substitution reactions HE Which of the structures below are a valid resonance form of the arenium ion shown above? Select one: HXH Η Ε c
please give correct answer to these 5 questions with
explanations, thankyou
Alkenes are nucleophiles that can undergo electrophilic addition. Which of the following best describes the nucleophilic nature of alkenes? Select one a. The TT bond is localised above and below the C-C o bond, and the TT electrons are relatively far away from the nuclei and are loosely bound b. The bond is localised above and below the C-CT bond, and the electrons are relatively far away from the...
I was wondering if someone could help me with problems on my
test my teacher allows me to correct the wrong ones then give them
back for half credit. Along with the correct answer for each I’d
like to know why the answer I chose is wrong what is the correct
answer and why it is the correct answer. The marked red problems
are the incorrect problems.
17. Which of the following generally indicates the possibility of a chemical change?...
please help in all sections asap!!
In a Clemmensen reduction, an aryl ketone is reduced to an Oaryl aldehyde Caryl alkane aryl carboxylic acid aryl ester aryi anhydride Identify the electrophile for the Friedel-Crafts acylation of benzene. O aluminum tetrachloride anion aluminum chloride acylium ion carbocation carbanion Which of the following criteria is necessary for a nucleophilic aromatic substitution reaction? © A. The ring must contain a very strong electron withdrawing group. B. The ring must contain a leaving group....
26,30.Explain why.
31,32. Explain why.
26. What is the IUPAC name of the following compound? A 2-Nitro-5-carboxychlorobenzene B. 2-Chloro-4-carboxynitrobenzene 099 2-Chloro-1-nitro-4-benzoic acid D. 3-Chloro-4-nitrobenzoic acid 27. What is the correct structure for para-bromotoluene? Be Meo BE Br Br WI B II C. IL DIV 28. Why is the following compound not aromatic? A It has 4n -electrons. It is not cyclic C. It has 4n+ 2 -electrons D. The p electron orbitals are not continuous 29. What is the hybridization...
could you please help me with these questions. thank you so much
45. What is the order of decreasing reactivity of aldehydes, esters and ketones? a. Aldehydes > esters >ketones b. Esters> aldehydes > ketones c. Ketones > esters > aldehydes d. Aldehydes > ketones> esters 46. Which of these will not catalyze the reaction of a weak nucleophile with the carbonyl group of an aldehyde or ketone? (Hint: Look for which is not a Lewis Acid) A) I' B)...
can you guys please give me the correct answers and explain
why?
27. Which of the following statements regarding tRNAs is INCORRECT? A. In the folded structure of a tRNA, the anticodon loop is located near the 3' end of the molecule. B. Highly conserved nucleotides de primarily in the "loops" rather than the "stems". C. All tRNAs have the same 3 base sequence at their 3 end. D. All tRNAs contain post-transcriptionally modified nucleotides. E. In most cells, tRNA...
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