Test #2 ANSWERS CHM 101 Part I Multiple Choice (2 points each) 1. Which element is most likely to form three covalent bonds? A) C B) Si C) P D) S E) Se 2. A chemical bond formed when two atoms share two pairs of electrons is a ________ bond; it is best described as ________. A) double; covalent B) double; ionic C) single; covalent D) single; ionic E) triple; covalent 3. Which property could describe a covalent compound? A) It conducts electricity when melted. B) Has a low boiling
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com/bow/enthalpy-of-neutralisation Waterloo University. (n.d.). Thermochemistry. Retrieved Oct 7‚ 2013‚ from www.science.uwaterloo.ca: http://www.science.uwaterloo.ca/~cchieh/cact/c120/thermosum.html What in the World Isn ’t Chemistry?(2013). General Chemistry. CHM 1311. Laboratory Manual: University of Ottawa.
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CHM 096 TUTORIAL 2 (Chemical Equilibrium) 1. Write the equilibrium constant expression‚ Kc‚ for each of the following reactions: a) 2NO(g) + O2(g) ⇄ 2NO2(g) b) The decomposition of solid potassium chlorate to solid potassium chloride and oxygen gas. c) 4HCl(g) + O2(g) ⇄ 2H2O(g) + 2Cl2(g) d) 2NO2(g) + 7H2(g) ⇄ 4H2O(l) + 2NH3(g) e) H2O(g) + C(s) ⇄ CO(g) + H2(g) f) The reduction of solid copper (II) oxide with hydrogen gas to produce copper metal and
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edu/chemlab/bch4053l/enzymes/activity/index.html Enzymes Essential. (N.D). Enzymes Basics. Retrieved February 3‚ 2014 from http://www.enzymeessentials.com/HTML/print_tour.html Ophart‚ C.E. 2003. Enzyme Characteristics. Retrieved February 3‚ 2014 from http://www.elmhurst.edu/~chm/vchembook/570enzymes.html Preszler‚ R.W.‚ Haas‚ L.L.‚ Marion‚ A.L.‚ Urquidi‚ L.J. 2012. Cellular and Organismal Biology: Student Investigations‚ 10th edition‚ Hayden-McNeil Publishing‚ Plymouth MI Princeton. (N.D). Catalase. Retrieved
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Complexometric Determination of Water Hardness Kayla Partridge Britni Gonzales 09/15/2014 Abstract Determining the water hardness of unknown sample #55 was determined by complexometric titration. With the use of disodium salt EDTA as the solution to chelate the metal impurities and the Eriochrome Black T indicator as the solution used to help visualize when the impurities were completely chelated‚ along with a few other solutions to help the reaction. Unknown water sample #55 experimental
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Running head: METABOLISM Metabolism February 12‚ 2013 Western Governor’s University GRT1 Metabolism Enzymes are molecules that are responsible for chemical reactions that occur within the body. They act as catalyst by accelerating metabolic reactions from the digestion of foods to synthesizing deoxyribonucleic acid (DNA). An enzymatic reaction changes substrates‚ the beginning molecule‚ into products. Enzymes are selective for the type of substrate that they will bind to; they have specific
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CHM 131(GENERAL CHEMISTRY) TITLE: BASIC LABORATORY TECHNIQUES (EXPERIMENT 1) NAME: MURSYIDA BINTI MOHD DAKROH(ID: 2015883226) LAB PARTNERS:NABILA SOFEABINTI ZAWAWI (ID: 2015850932) :NUR ANISLYANA BINTI TAMAM (ID: 2015832718) :NUR AUNI BINTI MOHD RADZIFF (ID: 2015863252) LECTURER NAME: MADAM DYIA SYALEYANA BINTI MD.SHUKRI PROGRAM: RAS1201B DATE OF EXPERIMENT: 30 JUNE 2015 OBJECTIVE 1. To learn the qualitative and quantitative aspect
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Many myths show the creation of the caste system and social hierarchy. We see the creation of a caste system in Hindu mythology with Brahmin being the highest and Shudra being the lowest. In Chinese mythology we see the creation of a social hierarchy with differences between the rich and the poor. In both these traditions‚ superior beings are responsible for the creation of a social hierarchy. In Hinduism‚ the myth of Purusha‚ the cosmic man‚ explains the creation of the caste system‚ and in Chinese
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Complexometric Determination of Water Hardness By Nick Williams CHM 152 Lab dates: Aug 28th 2013 Dr. Weide Abstract: When a polyatomic ligand with multiple lone pairs of electrons available for bonding to a central metal ion forms a complex with a metal ion‚ a process known as chelation takes place. Metal ion impurities can be found by using disodium salt of EDTA to determine the concentration of M2+ by complexometric or chelometric titration. Erichrome Black T makes it easy to see
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CHM 096 TUTORIAL 2 (Chemical Equilibrium) Jan 2013 1. Write the equilibrium constant expression‚ Kc‚ for each of the following reactions: a) b) c) d) e) f) 2NO(g) + O2(g) ⇄ 2NO2(g) The decomposition of solid potassium chlorate to solid potassium chloride and oxygen gas. 4HCl(g) + O2(g) ⇄ 2H2O(g) + 2Cl2(g) 2NO2(g) + 7H2(g) ⇄ 4H2O(l) + 2NH3(g) H2O(g) + C(s) ⇄ CO(g) + H2(g) The reduction of solid copper (II) oxide with hydrogen gas to produce copper metal and water at o 500 C. 2H2(g) + O2(g)
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