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A reaction under kinetic control will yield predominantly: Select one: O a. the most stable product...
A reaction under thermodynamic control will yield predominantly: Select one: O a. the most stable product...
A reaction under thermodynamic control will yield predominantly: Select one: O a. the most stable product o b. the product whose formation requires the smallest free energy of activation O c. the product with the greatest potential energy o d. the product that can be formed in the fewest steps
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C....
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C. (2z, 42)-1,4-dimethyl-1,3-butadiene D. (22, 42)-2,4-hexadiene E. None of these Predict the product for the following reaction. нгон-1400C 5. A. propene B. diethyl ether C. 1-hexanol D. 1-propoxypropane 6. Which one of the following represents the lowest energy D-bonding molecular orbital of 1,3- butadiene? IV 7. A thermodynamically-controlled reaction will yield: A) the most stable product. B) C) the product that can be formed in...
4) There are 3 different N atoms in the semicarbazide, and yet only one of them...
4) There are 3 different N atoms in the semicarbazide, and yet
only one of them is the site that does the nucleophilic attack. Why
is that N atom most reactive? Describe using structures.
Introduction Many reactions can take more than one course but the preferential formation of only one of the possible products may be attained by a judicial choice of the reaction conditions. In general, the 1 of 5 CHEM-2300 F19 Experiment 6 formation of a product is...
3) Which semicarbazone is colourless and which is yellow. Why do they differ in this property?...
3) Which semicarbazone is colourless and which is yellow. Why do
they differ in this property? In general, what gives a compound
colour? (Isn’t chemistry cool?)
Introduction Many reactions can take more than one course but the preferential formation of only one of the possible products may be attained by a judicial choice of the reaction conditions. In general, the 1 of 5 CHEM-2300 F19 Experiment 6 formation of a product is controlled by thermodynamic (differences in relative potential energies...
Enzymes are important to biology because they can be used to Select one: O a. Control...
Enzymes are important to biology because they can be used to Select one: O a. Control when chemical reactions happen O b. Control where chemical reactions occur O c. Link different chemical reactions O d. Couple ATP hydrolysis to activity O e. All of the above Diffusion is the movement of solute propelled by collisions with water. Diffusion spontaneously transforms energy concentration gradients into energy equilibrium conditions just like any other spontaneous reaction. Select one: O a. high; high O...
An LED is made of GaPo.24so8 and emits green light photons. What color is the following LED: GaPo As04 expected to emit? Select one: O i. recd O ii. yellow iiblue O iv. orange 2.2 2.0 1.8 1.2 0.8 0.6...
An LED is made of GaPo.24so8 and emits green light photons. What color is the following LED: GaPo As04 expected to emit? Select one: O i. recd O ii. yellow iiblue O iv. orange 2.2 2.0 1.8 1.2 0.8 0.6 0.4 0.2 x in SiGe,Sn-X What is the wave length in nm emitted by SiGeoSng? (Round you answer to the nearest whole number and omit the unit) Answer Forming covalent bonds Select one: O i. results in less stable state...
Page 6 15. A chain reaction is one that & involves a series of steps b....
Page 6 15. A chain reaction is one that & involves a series of steps b. involves two steps of equal activation energy. e. can be initiated by light d. Involves a series of steps, each of which generates a reactive Intermediate that brings about the next step. e. involves free radicals that have an unusual stability and thereby cause a large quantum yield. involves a series of about the next step.. and thereby 16. The hybridization state of the...
eeWs Page 2 Identify the nucleophile in the following reaction. ROH H, 0+x O o Pas...
eeWs Page 2 Identify the nucleophile in the following reaction. ROH H, 0+x O o Pas 2 HO+ RX a. X b. н,о° c. ROH d. H,o e. RX eoulav olmaneboseds pietren fom c.er Ho 6. Which free radical is most stable relative to the hydrocarbon from which it is formed? a. CH, CH, CH, b. (сн, ), сн- с. (сH, ), С. d. CH-CH lon fom ayd beoubozg ed neolaoibe o nonudacoqm dpld o oa e. CH2-CHCHCH3 Which of...
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the...
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the free-energy change for the reaction more favorable. b. ensure that the product is more stable than the substrate. c. ensure that all the substrate is converted to product. d. increase the rate at which substrate is converted into product. e. do none of the above. The focus of the online practical lesson was the enzyme chymotrypsin. The catalytic mechanism by which chymotrypsin reactions occur:...
What is the major product of the reaction? HBr Select one: Br a. Br Br. O...
What is the major product of the reaction? HBr Select one: Br a. Br Br. O b. Br a C. Which polymer is formed from the following conditions? ||||| ROOR heat n a b Select one: 白。自 b.b C.C Which Fischer projection represents R-2-chloropentane? Select one: CH3 a. ci-to -CH2CH2CH3 H CH3 b. H+CH2CH2CH3 CI H C. H3C-CH2CH2CH3 CI CI d. Hgc +H CH2CH2CH3 What is the major product of the reaction below? ОН 1) LIAIHA 2) H20 Select one:...
A reaction under thermodynamic control will yield predominantly: Select one: O a. the most stable product o b. the product whose formation requires the smallest free energy of activation O c. the product with the greatest potential energy o d. the product that can be formed in the fewest steps
4. What is the IUPAC name for the following A. (2E, 42)-2,4-hexadiene B. (2E, 4Z)-1,4-dimethyl-1,3-butadiene C. (2z, 42)-1,4-dimethyl-1,3-butadiene D. (22, 42)-2,4-hexadiene E. None of these Predict the product for the following reaction. нгон-1400C 5. A. propene B. diethyl ether C. 1-hexanol D. 1-propoxypropane 6. Which one of the following represents the lowest energy D-bonding molecular orbital of 1,3- butadiene? IV 7. A thermodynamically-controlled reaction will yield: A) the most stable product. B) C) the product that can be formed in...
4) There are 3 different N atoms in the semicarbazide, and yet
only one of them is the site that does the nucleophilic attack. Why
is that N atom most reactive? Describe using structures.
Introduction Many reactions can take more than one course but the preferential formation of only one of the possible products may be attained by a judicial choice of the reaction conditions. In general, the 1 of 5 CHEM-2300 F19 Experiment 6 formation of a product is...
3) Which semicarbazone is colourless and which is yellow. Why do
they differ in this property? In general, what gives a compound
colour? (Isn’t chemistry cool?)
Introduction Many reactions can take more than one course but the preferential formation of only one of the possible products may be attained by a judicial choice of the reaction conditions. In general, the 1 of 5 CHEM-2300 F19 Experiment 6 formation of a product is controlled by thermodynamic (differences in relative potential energies...
Enzymes are important to biology because they can be used to Select one: O a. Control when chemical reactions happen O b. Control where chemical reactions occur O c. Link different chemical reactions O d. Couple ATP hydrolysis to activity O e. All of the above Diffusion is the movement of solute propelled by collisions with water. Diffusion spontaneously transforms energy concentration gradients into energy equilibrium conditions just like any other spontaneous reaction. Select one: O a. high; high O...
An LED is made of GaPo.24so8 and emits green light photons. What color is the following LED: GaPo As04 expected to emit? Select one: O i. recd O ii. yellow iiblue O iv. orange 2.2 2.0 1.8 1.2 0.8 0.6 0.4 0.2 x in SiGe,Sn-X What is the wave length in nm emitted by SiGeoSng? (Round you answer to the nearest whole number and omit the unit) Answer Forming covalent bonds Select one: O i. results in less stable state...
Page 6 15. A chain reaction is one that & involves a series of steps b. involves two steps of equal activation energy. e. can be initiated by light d. Involves a series of steps, each of which generates a reactive Intermediate that brings about the next step. e. involves free radicals that have an unusual stability and thereby cause a large quantum yield. involves a series of about the next step.. and thereby 16. The hybridization state of the...
eeWs Page 2 Identify the nucleophile in the following reaction. ROH H, 0+x O o Pas 2 HO+ RX a. X b. н,о° c. ROH d. H,o e. RX eoulav olmaneboseds pietren fom c.er Ho 6. Which free radical is most stable relative to the hydrocarbon from which it is formed? a. CH, CH, CH, b. (сн, ), сн- с. (сH, ), С. d. CH-CH lon fom ayd beoubozg ed neolaoibe o nonudacoqm dpld o oa e. CH2-CHCHCH3 Which of...
The role of an enzyme in an enzyme-catalyzed reaction is to: Select one: a. make the free-energy change for the reaction more favorable. b. ensure that the product is more stable than the substrate. c. ensure that all the substrate is converted to product. d. increase the rate at which substrate is converted into product. e. do none of the above. The focus of the online practical lesson was the enzyme chymotrypsin. The catalytic mechanism by which chymotrypsin reactions occur:...
What is the major product of the reaction? HBr Select one: Br a. Br Br. O b. Br a C. Which polymer is formed from the following conditions? ||||| ROOR heat n a b Select one: 白。自 b.b C.C Which Fischer projection represents R-2-chloropentane? Select one: CH3 a. ci-to -CH2CH2CH3 H CH3 b. H+CH2CH2CH3 CI H C. H3C-CH2CH2CH3 CI CI d. Hgc +H CH2CH2CH3 What is the major product of the reaction below? ОН 1) LIAIHA 2) H20 Select one:...
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