Uses in society

The first alkene polymer to be used in society was polyisoprene, a natural product extracted from the sap of rubber trees. See our Box for a description of the history of rubber. The monomer from which this polymer is constructed... 

In addition, societal expectations about substance use seem to be related to the susceptibility of societal members to experience drug-related problems. Many respected researchers believe that exposure to responsible substance use in society early in life may promote more moderate substance use in those societies where such behavior is sanctioned. One striking example is the Netherlands, which legalized marijuana use in coffee shops two decades ago but currently has lower marijuana abuse rates than the United States. We have no idea whether this kind of societal exposure would work with more potent substances than marijuana, although the same results have been found for alcohol in France, which has a much lower cirrhosis rate than the United States even... 

Have you ever heard someone refer to aluminum foil as tin foil At one time, the foil was, in fact, made from elemental tin. Find out why manufacturers phased out tin in favour of aluminum. Compare their chemical and physical properties. Identify and classify the products made from or with aluminum. What are the technological costs and benefits of using aluminum What health-related and environment-related issues have surfaced as a result of its widespread use in society Write a brief report to assess the economic, social, and environment impact of our use of aluminum. Answers to Practice Problems and Short Answers to Section Review Questions ... 

A wide variety of natural and anthropogenic materials and chemicals are recognized to influence human health. In this chapter, we consider earth materials to include a fairly broad range of solids and gases that are produced by namral earth processes are liberated from the earth as a result of human activities or that are produced from the earth by humans and transformed for use in society. Examples of earth materials that have been the focus of health concerns (Tables 1 and 2) include ... 

The ability of chemists and other physical scientists to more effectively collaborate with biological scientists and medical doctors is essential for the future of mankind. Nearly all problems facing us in this area require multidisciplinary approaches and ideas. The ability to effectively communicate and collaborate to solve problems in disease and diagnosis with mutual respect and without any arrogance of any field or discipline is critically required. The very serious ethical and social issues that modem science raises requires cQl scientists and medical practitioners to take seriously their own responsibility for what they invent and how it will be used in society. 

Ultimately, the fate of anything used by humans is that it becomes waste material. If the primary activity of industry is to produce a product, which has a use in society, this activity has the potential to generate waste at many stages in the process. The waste material may be released to the environment at the point of generation or at a later stage. It is important to understand the interaction of any release with the environment and particularly in relation to the biogeochemical cycles, so that any likely environmental... 

By far, the largest source of hydrocarbons is crude oil, which contains mostly alkanes.This is unfortunate because, as we learned in Chapter 3, alkanes are relatively inert and would not be very useful as starting materials for organic reactions to produce the myriad of compounds used in society today. 

Lunde, Paul, ed. The Booh of Codes Understanding the World of Hidden Messages. Los Angeles University of California Press, 2009. Covers codes and ciphers used in society and the history of cryptography. Chapter 13 discusses the development of the computer and computer cryptography. 

Silicones are polymers of silicon and oxygen chains, with organic side groups attached to the silicon atoms.They have many useful properties and are extensively used in society. Although they have very, very low vapor pressures, they do have vapor pressures. They also have very low surface energies. Comment on the potential for silicone s presence on any real surface. 

Silicate ceramics are very old materials that are very widely used in society thanks to their undeniable assets, namely their high mechanical strength, excellent chemical inertia and esthetic qualities. A common feature is that they are obtained... 

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