flammable; do not use near an open flame. Wear chemical splash goggles‚ chemical-resistant gloves‚ and a chemical-resistant apron. Please review current Material Safety Data Sheets for addi-tional safety‚ handling‚ and disposal information. Procedure: 1. Place the two halves of a Petri dish on the projection stage of an overhead projector. Pour enough sodium sulfate solution into each half of the Petri dish to just cover the bottom of each half dish. 2. Add 2–3 mL of universal indicator to
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abiotic factors: An organism?s environment includes nonliving‚ or abiotic‚ features‚ such as temperature‚ sunlight‚ precipitation‚ rocks‚ ponds‚ and so forth. abrasion: particles moved by water‚ ice‚ and air can be effective in wearing away rock. active transport: the movement of a substance against its concentration gradient (from low to high concentration). Al2O3 (aluminum oxide) O ------ Al ----- O ------- Al --------- O Alleles: A version of a gene. Alternating current (AC). is electric
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THE CHEMISTRY OF LIFE (Review 1-7) I. Basic Chemistry A. Elements 1. Definition- an element is a substance composed of a single type of atom 2. Major elements of the human body 3. Trace elements of the body B. Atoms 1. Definition- the atom is the smallest part of an element which cannot be broken down further by ordinary chemical means. Atoms are composed of protons‚ neutrons and electrons. 2. Particles that make up atoms
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performed several electrical discharges over a mixture of potassium hydroxide. By this process‚ he converted nitrogen of the air into potassium nitrate. Then‚ he removed the oxygen excess‚ but there still remained a small amount of gas‚ no larger than 1/120 of the original volume of air. He considered that this difference had been caused by experimental errors. About 100 years later‚ Lord Rayleigh and Sir William Ramsey discover Argon in 1894. For Ramsey‚ it is was as early as 1885-1890 when he published
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(molecule or ion) that is able to lose‚ or "donate" a hydrogen ion (proton)‚ and a base is a species with the ability to gain or "accept" a hydrogen ion (proton). acid salt: NaHSO4 & H2O => Na+ & H3O+ & SO4-2 basic salt: Na2CO3 & H2O => 2Na+ & (HCO3)-1 & OH- neutral salt: NaCl & H2O => Na+ & Cl- & H2O Module 5- Buffers 15. An acid contributes a surplus of hydrogen ions to a solution. A base contributes a surplus of hydroxide (OH) ions to a solution. 16. Buffer solutions are solutions that resist
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Career and Professional Development (OAD 134) Questions from chapters 1 & 2 in your textbook NOTE: You need to keep a copy of your answers so that you have them to study for your first test. 1. List 7 workplace trends that are changing the labor force. larger workforce older workforce increase in e-commerce more service jobs change in consumer demand more diversity in the workplace increase in education and training requirements 2. How many new jobs for office and administrative
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Chapter 1 Review Questions The financial statements most frequently provided include all of the following except the: statement of retained earnings An effective process of capital allocation is critical to a healthy economy‚ which: promotes productivity‚ encourages innovation‚ provides an efficient and liquid market for buying and selling securities Challenges facing financial accounting include all of the following except: financial measurements All of the following are objectives of
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then the substance conducted electricity. The two ends of the probe were held away from each other in the dissolved form of the substance and if the light flashed on‚ then the substance conducted electricity when dissolved. I think substance 1 is a covalent compound. This is because it had a low melting point during the melting point test. Substance 2 might be a metallic compound because it had a high melting point but also low solubility in water. I think substance 3 is an ionic compound
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1) Why are information systems (IS) essential in organizations? Information systems are the modern approach to data organization. It allows an effective and efficient way to store‚ modify‚ retrieve and manipulate data and information for a specific business or organization. 2) Why do systems analysts need to know who the stakeholders are in the organization? One of the major task and responsibilities of the system analyst is to bridge the connection of all the stakeholders in the organization
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Rights Movement‚ Toni Cade Bambara’s short story "The Lesson" tells the story of a young African-American girl named Sylvia and the important life lesson that she learns one day while on a trip to a toy store in New York. Her neighbor‚ Miss Moore‚ brings Sylvia and a group of her friends to F.A.O. Schwarz and while there‚ they come face to face with the injustices they face because of their backgrounds. Miss Moore does this to teach them a lesson‚ one that she feels that they need to learn in order
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