Lewis Structures and the Shapes of Molecules Pre-Lab Assignments: To be assigned by your lab instructor. Student Learning Outcomes: Learn how to draw Lewis structures. Learn how to draw Lewis structures for atoms which violate the octet rule. Learn how to use Lewis structures and VSEPR and to predict the shapes of molecules. Learn how to use the shape of a molecule to predict whether or not it is polar. Experimental Goals: The purpose of this lab is to learn how to draw Lewis
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PHYTOCHEMICAL ANALYSIS ON KULITIS LEAVES EXTRACT ( Amaranthus viridis Linn. ) A Biological Research Submitted to the Research Center Alabel National Science High School Regional Science High School for Region XII Alabel‚ Sarangani Province Submitted by: Shaira Mae M. Yamon Fourth Year- Diamond Submitted to: SHIELA P. BUTIL‚ Ph. D. Research Adviser August 5‚ 2013 Chapter I Introduction A. Background of the Study Amaranth (Amaranthus)
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School of Nursing Care Plan Student’s Name: Joie Ferreiro________________________________ Date: 9/5/14 Client’s Initials: R.S. Admission Date: 7/30/14 Age: 96 Sex: f___ Race: __w____ Religion: Jewish Allergies: Phenobarbital Diet: NPO Activity: Bed rest Admitting Medical Diagnosis (es): Sacral decubitus ulcer‚ polymicrobic sacral osteomyelitis Past Medical History (including past surgical history): Illnesses include: 1) Renal insufficiency 2) Anemia 3) hyperthyroidism
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Hydrosphere The movement of water around‚ over‚ and through the Earth is called the water cycle‚ a key process of the hydrosphere. In physical geography‚ the term hydrosphere (Greek hydro means "water") describes the collective mass of water found on‚ under‚ and over a planet’s surface. The Earth’s hydrosphere consists chiefly of the oceans‚ but technically includes clouds‚ inland seas‚ lakes‚ rivers‚ and underground waters. Hydrosphere refers to that portion of Earth that is composed of water. The
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He a lt h 0 3 2 3 Fire 0 Re a c t iv it y 2 P e rs o n a l P ro t e c t io n Material Safety Data Sheet Sulfuric acid MSDS Section 1: Chemical Product and Company Identification Product Name: Sulfuric acid Contact Information: Catalog Codes: SLS2539‚ SLS1741‚ SLS3166‚ SLS2371‚ SLS3793 CAS#: 7664-93-9 Sciencelab.com‚ Inc. 14025 Smith Rd. Houston‚ Texas 77396 RTECS: WS5600000 US Sales: 1-800-901-7247 International Sales: 1-281-441-4400 TSCA: TSCA
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William Howard Taft Born: 9/15/1857 Birthplace: Cincinnati‚ Ohio William Howard Taft was born in Cincinnati on Sept. 15‚ 1857. A Yale graduate‚ he entered Ohio Republican politics in the 1880s. In 1886 he married Helen Herron. From 1887 to 1890‚ he served on the Ohio Superior Court; 1890–92‚ as solicitor general of the United States; 1892–1900‚ on the federal circuit court. In 1900 McKinley appointed him president of the Philippine Commission and in 1901 governor general. Taft had great success
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Yuri Anthony D. Sucgang BMLS-IA Electrophoresis Machine Gel Electrophoresis Apparatus(Aragose Gel) Electrophoresis is the motion of dispersed particles relative to a fluid under the influence of a spatially uniform electric field. Gel electrophoresis is a laboratory procedure used to separate biological molecules with an electrical current. In this lesson‚ we’ll review how agarose gel electrophoresis works and introduce the equipment necessary to perform an electrophoresis experiment.
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Oxygen in Liquids (DISSOLVED OXYGEN) Dissolved Oxygen – the amount of dissolved oxygen in a body of water as an indication of the degree of the health of water and its ability to support a balanced aquatic ecosystem. Oxygen – is a clear‚ colorless‚ odorless‚ and tasteless gas that dissolves in water. Small but important amounts of it are dissolved in water. OXYGEN: Aquatic Life Depends on it Plants and Animals depend on dissolved oxygen for survival. Lack of dissolved oxygen can cause aquatic
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Grade 11 Chemistry Year End Test Multiple Choice Identify the choice that best completes the statement or answers the question. ____ 1. The molar mass of copper(II) sulfate pentahydrate‚ CuSO4.5H2O‚ is a. 245.6 g/mol d. 241.5 g/mol b. 177.5 g/mol e. 249.6 g/mol c. 219.2 g/mol ____ 2. A 100.0-g sample of a compound is composed of 16.3 g of carbon‚ 32.1 g of chlorine‚ and 51.6 g of fluorine. The empirical formula of the compound is a. CClF d. C3Cl2F6 b. CClF3 e. C9Cl6F18 c. C2Cl2F6 ____ 3. A
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How water is purified in water treatment plants Pre-treatment 1. Pumping and containment – The majority of water must be pumped from its source or directed into pipes or holding tanks. To avoid adding contaminants to the water‚ this physical infrastructure must be made from appropriate materials and constructed so that accidental contamination does not occur. 2. Screening (see also screen filter) – The first step in purifying surface water is to remove large debris such as sticks‚ leaves
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