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Free Response Question 4: A balloon at 25.0 oC has a volume of 10.0 L and submerged into a water bath at 0.00 oC. What is the new volume of the balloon?  Enter your answer below. Include proper significant figures and units for your answers. Show your work and answers for this problem on your scratch paper. Work must match the answer provided below. Upload the scratch paper within 15 mins of completing the exam.

Free Response Question 1: Answer the questions below about more testing that was conducted on Substance X.  What is the specific heat (J/goC) of Substance X if 1104 J of heat were absorbed by a 100.0 g and the temperature of the sample increased by 25.85 oC? q = mc∆T Using the specific heat from part a, calculate how much heat, in calories, would be required to raise the temperature of 500.0 g of Substance X from 25.00 oC to 100.0 oC. Enter your answer below. Include proper significant figures and units for your answers. Show your work and answers for this problem on your scratch paper. Work must match the answer provided below. Upload the scratch paper within 15 mins of completing the exam.

Free Response Question 2: Use the reaction below to answer the following questions:             2C4H10 + 13O2 → 8CO2 + 10H2O    ΔH = -5755 kJ Is the reaction exothermic or endothermic?  How much heat is produced when 5.25 moles of C4H10 (butane) react completely? How many grams of butane are needed to produce 9.70 x 104 kJ of heat? Enter your answer below. Include proper significant figures and units for your answers. Show your work and answers for this problem on your scratch paper. Work must match the answer provided below. Upload the scratch paper within 15 mins of completing the exam.

What is the purpose of marking a method with @Test in Java unit testing (e.g., JUnit)?

In a University Management System, what is the most appropriate type of relationship to model different types of Employees (Professor, AdjunctInstructor, ResearchAssistant, AdministrativeStaff, etc.)?

What are Use Case Diagrams used for?

What does it mean when we observe a failure during software testing?

Which of the following statements does not represent a limitation of using return on investment (ROI) for measuring and evaluating performance?

How will increases in the following items affect return on investment (ROI)? Increase in Expenses Increase in Inventory A. Decrease ROI Decrease ROI B. Decrease ROI Increase ROI C. Increase ROI Decrease ROI D. Increase ROI Increase ROI

The Jones Company purchased assets costing $200,000 which will be depreciated over 5 years using straight-line depreciation and no salvage value. Jones also purchased land and other assets, which are not depreciable, at a cost of $200,000. It is estimated that in 5 years, the value of these assets will be unchanged. Assume that annual cash profits are $80,000 and, for return on investment (ROI) calculations, the company uses end-of-year asset values. What is the ROI for each year using net book value? Year 1 Year 2 Year 3 Year 4 A. 11.1% 12.5% 14.3% 16.7% B. 10.0% 10.0% 10.0% 10.0% C. 10.0% 8.9% 7.3% 6.5% D. 11.1% 11.5% 12.5% 12.3%