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Study Resources (Chemistry)

11) An abrasive used in toothpaste is ________. 12) When a hypothesis is supported by many experiments is becomes a ________. 13) The science that studies the properties and composition of substances is called ________. 14) In the scientific method, after data is collected, a ________ is proposed which gives a possible explanation. 15).
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14-3Discuss the role unions and government agencies play in the design of procedures for the HR management process. 14-4A number of organizations have recently instituted a position called “manager of human resource systems.” Speculate about why this position may become strategically important to organizations in the future. .
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14-1Discuss the significance of having a separate organizational unit for the HR function (reporting to the vice president of HR), as opposed to having the HR function housed within an administrative organizational unit (reporting to a manager of HR). 14-2Examine the placement of the manager of HR systems in the organization.
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13-4 In terms of effectiveness and efficiency of operations, as well as of meeting the generic information system control goals of validity, completeness, and accuracy, what are the arguments for and against each of the following? a. Sending a copy of the vendor invoice to the purchasing department for approval.
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13-3 Without redrawing the figures, discuss how Figures 13.3, 13.4, and 13.6 would change as a result of the following independent situations (be specific in describing the changes): a. Employing a voucher system that involved, among other things, establishing vouchers payable that covered several vendor invoices. b. Making payments twice per.
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17-4 “Choosing among renting, leasing, and purchasing an AIS is strictly a financial decision and should be done by the finance staff.” Do you agree? Discuss fully. 17-5 “A vendor would never propose a system that would not meet an organization’s needs. Therefore, external validation of vendor proposals is not.
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14-5Discuss the significance of the employee/payroll master data in relation to the HR function and the payroll function. 14-6Tax rates data are depicted in both the logical DFDs and the physical implementation systems flowchart for the payroll process in this chapter. Discuss the advantages of maintaining a separate data store.
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11) Which of the following numbers is the largest? A) 2.05 ×103 B) 2.05 × 10-12 C) 2.05 × 105 D) 2.05 × 108 E) 2.05 12) Which of the following conversion factors involves a measured number? A) 10 cm/dm B) 12 in/ft C) 16 oz/lb D) 25 miles/gallon E) 12 eggs/dozen 13) Significant figures are important because.
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1.1   Multiple Choice Questions 1) Water, H2O, is an example of a(n) ________. A) chemical B) solid C) wave D) electric charge E) element 2) In this list, which substance can be classified as a chemical? A) salt B) sleep C) cold D) heat E) temperature 3) One example of a chemical used in toothpaste is ________. A) chlorine B) sulfur C) carbon dioxide D) calcium.
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17-15 Assume that you are the manager of an accounts receivable department. How might you be involved in system testing? Discuss fully. 17-16 a. Which, if any, of the categories of application system maintenance—corrective, perfective, or adaptive—presents the greatest risk from a control standpoint? Explain. b. Which, if any, pervasive control.
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17-10 “If the results of the cost/benefit analysis do not agree with those of the effectiveness analysis, there is probably no difference among the alternatives.” Discuss fully. 17-11 Discuss why the knowledge of documentation procedures (such as DFDs and systems flowcharts) is important to the acquisition/development process. .
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11) DDT is a type of ________. A) herbicide B) poison gas C) plant D) insecticide E) metal 12) Chlorofluorocarbons are destructive to the ________. A) ozone produced at ground level in traffic B) water in the upper atmosphere C) nitrogen dioxide in smog D) ozone layer in the upper atmosphere E) copper in telephone wiring 13) Titanium dioxide is a chemical.
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15-4 “A company cannot implement a just-in-time (JIT) process without making a heavy investment in computer resources.” Do you agree? Discuss fully. 15-5 “A company cannot implement manufacturing resource planning (MRP) without making a heavy investment in computer resources.” Do you agree? Discuss fully. .
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2.4   Short Answer Questions Round off each of the following to three significant figures. 1) 504.85 2) 8.3158 3) 25 225 4) 58.5422 5) 0.003 408 8 Express each of the following numbers using scientific notation. 6) 351 000 000 000 7) 0.000 860 8) 5 207 000 9) 0.000 000 050 State the number of significant figures in each of the.
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2.2   Matching Questions Are the numbers in each of the following statements measured or exact? A) measured B) exact 1) In the U.S. system there are 5280 feet in one mile. 2) A lab test showed a blood sugar level is 350 mg/dL. 3) There are 452 pages in a book. 4) The rabbit weighs 2.5 pounds. 5).
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17-12 The Eureka Company requests bids from vendors for specific configurations rather than bids for general performance objectives because it “knows what it needs.” Discuss fully. 17-13 “An organization puts itself at a disadvantage by asking only one vendor (versus asking several vendors) for a proposal for hardware or software.”.
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15-6 “A company cannot implement a flexible manufacturing process (FMS) without making a heavy investment in computer resources.” Do you agree? Discuss fully. 15-7 A main goal of just-in-time JIT is zero inventories. a. Assume your company does not aspire to JIT and has $1,000,000 in raw materials in stock. Identify.
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1.2   True/False Questions 1) The reddish-brown color of smog is due to NO2. 2) Chloroflourocarbons are broken down in the upper atmosphere to produce oxygen, O2. 3) DDT is effective against poison ivy. 4) The first step in using the scientific method is usually the observation of some natural event. 5) In the scientific method,.
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17-2 How might the absence of an organization’s strategic plan for the information system affect the conduct of a preliminary survey? Hint: Discuss the potential difficulties of making preliminary survey decisions in the absence of each of the strategic plan components. 17-3 In doing a preliminary survey for the proposed.
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