The periodic table has long served as the fundamentals of the chemical sciences, and its development has been the responsibility of a number of thinkers and theorists. The history of the periodic table is extensive; while many scientists maintained concepts and theories that influenced its development, much of the modern...
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The geochemical cycle involves the path through which mass and energy shift of chemical elements follow with the crust and surface of the earth. As the name states, geochemical cycle involves the geological elements and chemical elements. The earth consists of more than 92 natural elements, whose atoms have been...
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For an emergency manager, explosions are not the most common emergency that occurs. However, they do occur and an emergency manager must be prepared to deal with it, just as with all other emergency situations. One tragic explosion in 1997 resulted in the death of three firefighters. The explosion occurred...
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Water (H20) is the planet’s most abundant compound (Brown, 1998) and a major component in all living things (Brooker et al. 2010; Sharp, 2001). Water has anomalous physical and chemical properties; these properties are biologically relevant, some of them are necessary for life as well as determine the size, shape...
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Introduction In this experiment, the chemical equilibrium of methyl red which is a weak acid is investigated by finding the dissociation constant. Spectrophotometry is used in each case to measure the absorbance for different concentration of the test solutions. The extinction coefficients was obtained as the gradients of the concentration...
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The how and why of atomic nuclear decay; first the how, is due to the instability of the uranium isotope when exposed to the elements that combine to form natural air. The emission of subatomic particles from the atomic nucleus furthers the instability of the uranium nucleus relative to the...
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After food passes through the mouth where it is chewed and saliva and enzymes are added to it, it reaches the stomach. Once in the stomach, food churns via peristalsis two to four times per minute. This propels food toward the antrum. Food is held in to the stomach because...
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Company Information As a major competitor within the chemicals industry, Diamond Chemicals was a primary producer of polypropylene. This product is widely popular in the manufacture of different products, including medical products, packaging film, carpet fibres, and automobile components. Furthermore, polypropylene is known for its strength and malleability, which has...
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Plastics have been in use for a long time. The earliest form of plastic was bio-derived, organic polymers from blood and egg proteins egg proteins. Over the years, several new forms of plastic have come into use by the mass market following their discovery. Most recently, expanded polystyrene came into...
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Abstract Waste water discharged to the environment by industrial facilities has environmental consequences. These consequences can be analyzed through the help of the chemical oxygen demand lab that offers a guide on the quality of water discharged. This coupled with chemical oxygen demand values of effluents and influents suggest that...
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I am pleased to announce the discovery of a new element. While it is true that IUPAC (the International Union of Pure and Applied Chemistry) will need the confirmation of a second laboratory before it may be accepted for consideration to the periodic table, I feel as though it is...
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Even if chemistry is not an individual’s chosen profession or field of interest, it must be acknowledged this ancient science is definitely fascinating. Dating back to prehistoric times, the first known chemical reaction was fire. Of course humanity at the time was oblivious to the fact this was a result...
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Bonds are the chemical basis of life. Whether or not bonds form between two elements and, which type of bond forms are hugely influential in how these atoms interact with one another. This student did a great job of highlighting the three major types of bonds: ionic, covalent and hydrogen....
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The difference between biochemical, pharmaceutical, and diagnostic chemical reactions in healthcare is that biochemical reactions are essentially chemical reactions that use enzymes and ions of minerals and vitamins to act as catalysts in the more advanced chemical reactions. The biochemical reactions are initiated by the body and are not directly...
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When most individuals hear the term “fluoride,” they correctly think of proper dental health. Fluorides and hydrofluoric acid are chemicals that contain the chemical element fluorine. This element actually has broad applications beyond dental care. It also has the potential to cause life-threatening damage to an individual. Hydrofluoric acid is...
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Understanding how chemical compounds change state is valuable in learning how climate change can be controlled. When green-house gases like methane and CO2 are prevented from entering the atmosphere the amount of heat retained can be reduced. Molecules can be found in three states Solid, Liquid and Gas. Each state...
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When it comes to learning the basics of chemistry, many people often do not appreciate how these concepts can be applied to research (Puigdollers, Schlexer, & Pacchioni, 2015). Recently in class in chapter 6 we learned about gases, liquids, solids and intermolecular forces. In total, there are three main types...
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Hydrogen peroxide, or H2O2, is a strong oxidizer and a weak acid, which means that it participates in reduction-oxidation (redox) reactions, accepting an electron from another substance and itself being therefore "reduced." This substance, so similar in chemical composition to water (H2O), has intriguing properties that make it highly useful,...
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The food industry is an industry based on consumer preferences, the health of eaters, and money. Unfortunately, saving money sometimes means adding chemicals and preservatives to foods, these agents often causing harm and even death to consumers, cancer causing agents in food having an adverse effect on societal health. However,...
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1. What is the major purpose of doing distillations in organic chemistry? What is a secondary purpose? The main purpose of distillation in organic chemistry is to purify liquids. As a secondary benefit, the boiling point of the liquid can be determined. Boiling point, along with other physical and chemical...
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Throughout my educational career I have been fascinated with the study of science and specifically the chemical sciences. I enjoy delving into the history of discoveries in the sciences such as the DNA Double Helix by Watson and Crick and the newest elements in the periodic table. While the average...
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