Category: Application Exercises

Unit 9: Molecules and Drugs

Questions for CM8001-AE 9 1.In allergy sufferers, histamine causes runny noses, red eyes, and other symptoms. Here is its structural formula.   a. Give the chemical formula for this compound. C5H9N3 b. Circle the amine functional group in histamine. c. Which part (or parts) of the molecule make the compound water-soluble?  Amine group , -NH group and double bond make the… Read more →

Unit 8: The World of Polymers and Plastics

Questions for CM8001-AE 7 1. When Styrofoam packing peanuts are immersed in acetone (the primary component in some nail-polish removers), they dissolve. If the acetone is allowed to evaporate, a solid remains. The solid still consists of Styrofoam, but now it is solid and much denser. Explain. Hint: Remember that Styrofoam is made with foaming agents. When Styrofoam is immersed in… Read more →

Unit 6: Neutralizing the Threat of Acid Rain

Questions for CM8001-AE 5 1.Mammoth Cave National Park in Kentucky is in close proximity to the coal-fired electric utility plants in the Ohio Valley. Noting this, this National Parks Conservation Association (NPCA) reported that this national park had the poorest visibility of any in the country. a. What is the connection between coal-fired plants and poor visibility? b. The NPCA… Read more →

Unit 5: Water for life

Questions for CM8001-AE 5 1.How can you purify your water when you are hiking? Name two or three possibilities. Compare these methods in terms of cost and effectiveness. Are any of these methods similar to those used to purify municipal water supplies? Explain. During a hike, a simple method to purify water would to be boil it. The process of… Read more →

Unit 3: Global Climate Change

Questions for CM8001-AE 4   1. Understanding Earth’s energy balance is essential to understanding the issue of global warming. For example, the solar energy striking Earth’s surface averages 168 watts per square meter (W/m^2), but the energy leaving Earth’s surface averages 390 W/m^2). Why isn’t Earth cooling rapidly?   According to Earth’s Radiation/Energy Budget, there are other factors to consider… Read more →

Unit 4: Energy and Combustion

Questions for CM8001-AE 3   1.From personal experience, state whether these processes are endothermic or exothermic. Give a reason for each. a. A charcoal briquette burns Hot sensation felt by the skin suggest that the burning of charcoal produces heat, thus an exothermic process. b. Water evaporates from your skin. Skin feels cold. Heat energy from the human is used… Read more →

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