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 →
Author: Cheng Wei
Video Content
Introduction Have you ever wondered: Why antibiotics are not panaceas? Why antibiotics are not as effective? Why are there numerous antibiotics for one purpose? All these are due to antibiotics resistance! To understand antibiotics resistance, we need to first learn more about bacteria! Chemical Concept What are bacteria? Bacteria are prokaryotes, which consist of a single cell with a… 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 →
Air and Pollution Learning Points
Pollution is a major environmental issue that the world faces today. Read more →