Chemical Essay Samples and Topic Ideas

Chemical Oxygen Demand (DQO), Biochemical Oxygen Demand (BOD), total nitrogen, total phosphorus and total suspended solids. After the study, it concludes that the plant's wastewater treatment system, achieve a removal of 60% of the health, DQO and SS quality sanitary parameters, has an intermediate performance, and reduces in an intermediate term, the loadReceiving body pollutant called Río Contreras. With respect to total nitrogen and total phosphorus variables, the removal of these two parameters is considerably low. At the same treatment plant of the Rafael Landivar University (DE LEON, 2017), it carried out the technical evaluation and the proposal to improve the percolative filters, which has...

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chemical agents used therapeutically to treat diseases. Currently medicines are used for both prevention and treatment for diseases or their consequences. Another important application of medicines today is to maintain health and relieve pain during disease (Ministry of Environment Ecuador, 2013) In the development of pharmaceutical products, chemical kinetics intervene, which is responsible for the study of the speed of a chemical reaction and also studies the design of equipment, control and product processing.(Polloqueri, Quehpe, Vargas, & Álvarez, 2014). To this day, the manufacture of pharmaceutical products implies the use of organic molecules that require several chemical steps and...

chemical and lifestyles. References National Cancer Intituto. .; 2015 [Cited 2019 December 7. Diaponiblre at: https: // www.cancer.GOV/Spanish/Cancer/Nature/Que-are.  World Health Organization. .; 2014 [Cited 2019 December 7. Available at: https: // www.quien.INT/CANCER/ABOUT/FACTS/ES/.  Cancer treatments: Medlineplus Medical Encyclopedia. .; 2017 [Cited 2019 December 7. Diaponable at: https: // medlineplus.GOV/SPANISH/Ency/Patientinstruccions/000901.htm.  American Cancer Society. . [Cited 2019 December 10. Available at: https: //...

chemical -dependent plants to express their physiological processes, such asgermination, flowering, fruit maturation and the activation or deactivation of the immune system that makes a plant susceptible to a disease. These processes are controlled by adding to the cultivation of a chemical that regulates such processes. For the industry it is more profitable. Terminator is a perverse technology, because it breaks with the rights over their biological and reproductive cycles of all living beings, and because it also violates the millenary right of farmers to reproduce, store or exchange seeds (Rafi, 1999, 2001). It is an irreversible process. This concern is greater in megadiverse countries such as...

chemicals. Although traditional cigarettes also have these chemicals, it has been investigated that cancer risks or other harmful diseases are higher in smokeless tobacco products, since the substance remains for prolonged periods in the mouth instead of burning and inhaling. Effects on smokeless tobacco The fact that smokeless tobacco is chewed and does not inhale like other forms, such as cigarettes, does not mean that they are less harmful. Smokeless tobacco consumers can have a multitude of dental health problems when they use these products on a regular or even sporadic way. When visiting your dentist, you can help identify these oral signs and prescribe a treatment solution. Bad...

chemical materials that are used in immense quantities and in very infinite applications within the products consumed by the human being, it should be clarified that we see where we see the plastic remains every timeMore and more despite the different reduction strategies that supposedly apply the first plastic pollutant companies. The use of plastic can be seen from the simplest materials for a home task to perfectly hermetic wrappers of products that serve in hospitals all this because if the plastic is very easy to use and facilitates life for its long durationHowever, this same long duration is the one that is generating the problem in rivers, seas, lakes and oceans regarding the amounts of...

chemical elements, which alter the human organism in the psychic field, as well as those that help for medicinal uses, have always been associated with certain cultures. The definition given by the World Health Organization about drugs is as follows: it is any substance that, introduced into the body by any way of administration, causes an alteration, in some way, of the natural functioning of the individual's central nervous systemAnd it is also likely to create dependence, whether physical psychological or both. (Somedo, 2015) The use and consumption of psychoactive substances are in the center of the national and international debate. The fight against drugs and their consumption are...

chemical elements that are recognized today (helium, oxygen, silica, iron, etc.) and also, the formation of astronomical objects (stars, galaxies, etc). Stephen Hawking explained the most complex concepts of the universe, our universe is one among many. But the total number of universes is finite. And the multiple existing universes are similar among them. This is the final vision of the cosmos that Stephen Hawking developed in his last months before he died. It is difficult for the human being to never ask about the origin of life or the universe, since they are essential questions in our own rational nature, this led the human being to investigate more about the universe and even know the future...

chemical provisions and washing ofmoney). In the formation of the drug circuit, each class of social actors depends on others and, in turn, subordinates them, such as politicians based on the image of the social problem produced at that time and on the attitudes thatTake the public, from which their votes come. In the selection of information, the media of multitude depend on the behaviors existing in the public and their demand for information and confirmation of the image of reality. In this way, this process can be synthesized with Meudt's words, according to which experts, institutions, the public and the press are reinforced reciprocally;All of them develop both the war against the drug...