Numerade

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Consider the following reaction. $$CH_3CH(CH_3)CH_2Cl \xrightarrow{NaSH, acetonitrile} CH_3CH(CH_3)CH_2SH$$ Part 1 of 6 Identify the mechanism operating for this reaction. Select the single best answer. $$S_N1$$ E1 $$S_N2$$ E2 Part 2 of 6 The $$S_N2$$ mechanism has a [second-order] rate law and proceeds in [one step]. Part 3 of 6 The nucleophile in this reaction is [HS-] and the leaving group is [Cl-]. Part 4 of 6 The electrons flow from the electron-rich atom of the nucleophile to the electron-poor atom of the alkyl halide, forming a new bond between them. Identify the electron-rich atom in the nucleophile. Enter the element symbol only, do not include any charges. HS- [S] Part 5 of 6 The electrons flow from the electron-rich atom of the nucleophile to the electron-poor atom of the alkyl halide, forming a new bond between them. Highlight the electron-poor atom in the alkyl halide.

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Which of the following is the essential purpose of the audit function? O Examination of individual transactions to certify as to their validity. O Detection of fraud. O Determination of whether the client's financial statement assertions are fairly state Assurance of the consistent application of correct accounting procedures.

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When blood calcium concentration decreases, calcium is immediately provided by the demineralization of bone. O True O False

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Historically, black American populations in the United States were located in: (Choose every correct answer.) Multiple select question. Chicago Tampa Washington DC Detroit Missoula New York City

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are displayed on the surfaces of antigen-presenting cells. Agglutinated bacteria or viruses Attenuated pathogens Macrophages Memory cells Fragments of foreign molecules Entire pathogens

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What must the membrane do before the Na channels can return to its normal resting state

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Automatic stabilizers are components of federal revenue and spending that affect ____ without the need for explicit action by policymakers. the LRAS curve aggregate demand short-run aggregate supply aggregate demand and short-run aggregate supply

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If you have 20 segregating sites in 4 individuals, what is the value of 𝜃? 8.7 11.1 7.8 10.9

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Assume that society places a higher value on the last unit of X produced than the value of the resources used to produce that unit. With no spillovers, this information means that A resources are being overallocated to X. B total cost is greater than total revenue. C marginal cost is greater than price. D price is greater than marginal cost.

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Given the following differential equation for a control system: $7\frac{dy(t)}{dt} + 2y(t) = \frac{d^2r(t)}{dt^2} + 4\frac{dr(t)}{dt}$ a. Please find out the Laplace transform for the above differential equation. b. If the input is a one-third unit-step function. please find out the inverse Laplace transform for the above equation; c. Construct the analog simulation diagram for the control system.

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joshua j.