The Element: Chlorine General Information We researched the chemical element known as chlorine. Chlorine has an atomic number of 17 and an atomic weight of 35.453. It has a valence number of 3. The element has 3 energy levels. Chlorine exists as a greenish-yellow gas at normal temperatures and pressures. Chlorine is second in reactivity only to fluorine among the halogen elements. Chlorine is a nonmetal. It is estimated that 0.045% of the earth’s crust and 1.9% of sea water are chlorine.
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right guy. Ans. Complex sentence b. Hillary went to see the new branch manager but the manager had gone to lunch Ans. Compound sentence
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The process of naming compounds allows chemists to communicate formulae in words rather than in chemical symbols. There are‚ however‚ a few rules about naming compounds which need to be known in order to write a formula in word form or translate a compound in word form into chemical symbols. Ionic compounds If the compound is ionic‚ then the name of the cation (usually metal) comes first‚ followed by the ’compound’ name of the anion. To find the compound name of an anion‚ replace the end of the
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Other nitrogen containing compounds Catecholamine: Dopamine‚ norepinephrine (noradrenaline) and epinephrine (adrenaline) are biologically active amines and are collectively called as Catecholamine. * Dopamine and norepinephrine functions as neurotransmitters. Outside the nervous system‚ norepinephrine and its methylated derivative‚ epinephrine regulates carbohydrate and lipid metabolism. They are released from storage vehicles in the adrenal medulla in response to stress (fright‚ exercise‚ cold
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I. Abstract The common organic compounds provide us with nutrients are sugars and starches‚ carbohydrates‚ proteins‚ and lipids. In this lab‚ qualitative tests are performed to identify the presence of organic compounds in food using indicators‚ chemical substances that react in a certain way when a particular substance is present. We put one indicator into the each test tube containing different solutions at a time to see what organic compound is present. The color change in the indicator tells
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Empirical Formula of a Compound * Purpose: To determine the empirical formula of Magnesium Chloride. * Data 1. Mass of evaporating dish = 45.08g 2. Mass of evaporating dish and Magnesium = 45.17g 3. Mass of Magnesium: { 2 } – { 1 } = 0.09 4. Mass of evaporating dish and Magnesium Chloride First weighing = 45.48g (After heating and cooling) second weighing = 45.49g 5. Mass of Magnesium Chloride: { 4} – { 1 } = 0.41g
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ideological issues‚ and no value judgments are made concerning the “legal system per se.” 2. Historical‚ sociological and moral issues are beyond the scope of Kelsen’s pure theory of law. As such‚ Kelsen’s “Pure Theory” attempts to examine and define what law “is” outside the purview of these normative areas. “The pure theory of law is a theory of positive law. As a theory it is exclusively concerned with the accurate definition of its subject matter. It endeavors to answer the question
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Substance Abuse Notes Week 2 (First lecture) – 9/10 * Substance use vs. abuse * Use * The legal enjoyment of your property within socially acceptable norms * i.e. you don’t drive under the influence – that’s not socially acceptable * Consumption of any psychoactive substance * More neutral * Includes * Social drinking * 1-2 drinks on any one social occasion * Abuse * Any use of illegal
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with that information. The simplest compounds contain just two elements. Sodium chloride‚ NaCl‚ is an example of a binary compound. Several other examples are listed below. Potassium bromide KBr Calcium bromide CaBr2 Lithium fluoride LiF Lithium oxide Li2O When naming binary compounds follow these rules: 1. the element with the positive ionic charge is written first. 2. The second word is formed by changing the ending of the name of the element to “ide.” For example‚ bromine changes
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Do Pure Monopolies Exist Angela M. Turpen ECO100: Survey of Contemporary Economic Issues (ABQ1211B) Instructor: Phelicia Price April 2‚ 2012 “No firm is completely sheltered from rivals; all firms compete for consumer dollars. If that is so‚ then pure monopoly does not exist. Do you agree?” (Brue‚ McConnell‚ Flynn‚ 2010). I would have to agree with this statement. I do not believe that there is such a thing as a pure monopoly. There are always alternatives or substitutes available when
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