SALTS EVERYDAY First some words about salts in chemistry. Salts are ionic compounds that can result from the neutralization reaction of an acid and a base. They are composed of related numbers of cations (positively charged ions) and anions (negative ions) so that the product is electrically neutral (without a net charge). Salts can appear to be clear and transparent (sodium chloride)‚ opaque‚ and even metallic and lustrous (iron disulfide). In many cases the apparent opacity or transparency are
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The Importance of Chemistry in Life and Society Michael Birzon University of Phoenix February 28‚ 2013 The Difference Between Accuracy and Precision In the fields of mathematics‚ chemistry and all sciences accuracy can and or is defined‚ as a form of measurement‚ which calculates the degree of closeness of a quality to the quality’s truest value. While on the other hand‚ precision is a form of measurement that is exact‚ but is one in which can be duplicated and reproduce the same results
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Teaching AS Chemistry Practical Skills w w w e tr .X Appendix 2 m eP 3. How much iron is there in an iron tablet? – Student Sheet In this practical you will have the opportunity to perform a quantitative analysis using the technique of titration. You are going to analyse an iron tablet to find out how much iron is actually present in it. Titrations involving potassium manganate(VII) may form part of your Practical Assessment. Intended lesson outcomes By the end of this practical you
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The chemistry of life Cell chemistry is hierarchical Inorganic precursors Small organic molecules Macromolecules Supramolecular structures Organelles/structures Cell BIO 1140 – SLIDE 1 Review of macromolecules Carbohydrates Polymers of monosaccharides (polysaccharides) Energy storage Structural chitin starch glycogen Purple pages F23 cellulose BIO 1140 – SLIDE 2 http://www.mpie.de/index.php?id=2957 Monosaccharides CnH2nOn n = 3 to 7 Trioses‚ pentoses and hexoses
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August 22‚ 2013 Assignment 1: The Chemistry of Life Effects of Acid Rain There are many different types of negative effects acid rain has on the world. Acid rain is the mixture of wet and dry deposition from the atmosphere containing higher than normal amounts of nitric and sulfuric acids. Pollution contributes to the forming of acid rain. One of the main causes is industrial burning of coal and other fossil fuels the oxides they contain and combine with atmospheric water which forms acids.
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MATHS IN DAILY LIFE Mathematics is an integral part of our life. Right from the time we wake up in the morning till we go to sleep‚ invariably we are using mathematics in one or the other way. Teaching mathematics in classroom using pictures from daily life can help students in understanding a concept in a better manner. For instance‚ when a child is introduced the concept of 3 dimension‚ he/she is not able to visualize it. Learning of this concept can be made simpler and interesting by showing
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Geometry in Everyday Life Geometry in everyday life Geometry was thoroughly organized in about 300bc‚ when the Greek mathematician‚ Euclid gathered what was known at the time; added original work of his own and arranged 465 propositions into 13 books‚ called Elements. Geometry was recognized to be not just for mathematicians. Anyone can benefit from the basic learning of geometry‚ which is to follow the lines reasoning. Geometry is one of the oldest sciences and is concerned with questions
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Economics of Daily Life Leah Hand Stevens-Henager College Economics of Daily Life Economics is a study of how society manages its scarce resources. The literal translation for economy is “one who manages a household.” “In an increasingly complex world connected by social and economic interaction and interdependence‚ news of stock market fluctuations‚ consumer confidence scores‚ and various economic indicators fill the media” (Broome & Preston-Grimes‚ 2011). This means that economics is
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POLYNOMIALS IN DAILY LIFE Polynomials are a combination of several terms that can be added‚ subtracted or multiplied but not divided. While polynomials are in sophisticated applications‚ they also have many uses in everyday life. Although many of us don’t realize it‚ people in all sorts of professions use polynomials every day. The most obvious of these are mathematicians‚ but they can also be used in fields ranging from construction to meteorology. Polynomials in Construction and Material
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TECHNOLOGY IN DAILY LIFE All of us are aware of the fact that intensive research in various scientific fields developed over several centuries lead to technology development for several applications which is making our life simpler and easier on several fronts. Technology developed by our ancestors is helping us so much that we are taking them for granted. But without these developments life would have been very hard and difficult to visualize. Technology development
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