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Complete the following tasks:
Develop a use case diagram for renting acar. Include actors representing a fleet mechanic, a rental agent, and acustomer, and use cases for reportMechanicalProblems(), orderRepairs(), makeRepairs(), makeReservation(), rentCar(), andreturnCar().Develop an activity diagram thatillustrates how to rent a car.Develop a sequence diagram thatillustrates how to rent a car.
volumetric flask and diluted to the mark with deionized water. The iron concentration of this dilute solution was determined to be 0.00112 M. what percent of this compound is iron?
Gastric juice is made up of substances secreted from parietal cells, chief cells, and mucous-secreting cells. The cells secrete HCl, proteolytic enzyme zymogens, mucin, and intrinsic factor
the contents of one 40-lb bag of topsoil can cover 10.0 square feet of ground to a depth of 1.0 in. how many bags are
Window glass is typically made by mixing soda ash (Na2CO3), limestone (CaCO3), and silica sand (SiO2) and then heating to 1500 degrees Celcius to drive off Co2 from the Na2CO3 and CaCO3.
Xenon is a gas found in some automobile headlights. The density of xenon at room temperature and pressure is 5.3 g/L. What is the mass, in pounds, of 1.00 quart of xenon
One adds 25.00 mL of the solution in # 26 above to a 100 mL volumetric flask and adds enough water to fill the flask to the mark with stirring. (a) What is the molarity of the resulting solution
Silver has two isotopes and an average atomic mass of 107.87 amu. If 48.18% of Ag exists as Ag-109 (108.9047 amu), what is the identity of the other isotope?
a. construct the balanced equation for the combustion of dodecane c12h26 with 20 excess air but where only 90 of the
an electron is confined to a one dimensional box of length l it falls from the second energy level to the ground state and releases a photon with a wavelength of 322 nm. what is the length of the box
A natural gas mixture is burned in a furnace at a power-generating station at a rate of 13.0 mol per minute. (a) If the fuel consists of 9.3 mole CH4, 3.1 mole C2H6, 0.40 mol C3H8
Benzoic acid, C6H5COOH, is sometimes used for the standardization of solutions of bases. A 1.722-g sample of benzoic acid reacts with 26.47 mL of a NaOH solution. What is the molarity of the base solution
Find out the equilibrium pH for .0001 M Ammonium Chloride, NH4Cl salt of the weak conjugate acid, pK=9.25. Explain how much hypochlorous acid (HOCl pKa=7.60) must be added to pure water to make solution of pH 4.3. pH 6.5
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