be displayed in the highlighted column.( by Bronwyn J. Nelson‚ Fairfield High School‚ Fairfield‚ Ohio.) 1. More outer electrons: Phosphorus or silicon? 2. Liquid at room temperature: cobalt or mercury? 3. Produces a yellow flame test: barium or sodium? 4. Can be cut with a knife: dysprosium or chromium? 5. Part of the lanthanide series: cerium or thorium? 6. Larger atoms: carbon or fluorine? 7. Very high ionization energy: krypton or potassium? 8. Configuration ending
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eight debilitating bouts of antibiotic-resistant Clostridium difficile infection to a government panel in Washington. She grew better‚ she said‚ only after treating the gastrointestinal infection at home with her husband’s feces‚ a blender and an enema bag. FROM OUR ADVERTISERS Mark B. Smith‚ a young doctoral student in microbiology‚ was in the audience‚ almost as teary as Ms. Duff. Resolving to help patients like her‚ he started a nonprofit called OpenBiome‚ the first stool bank in the country
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September 20‚ 2013 On December 17‚ 1770‚ Ludwig van Beethoven was born in Bonn‚ Germany to the parents of Maria Keverich and Johann van Beethoven. He was raised by his father who hoped he was going to become a child prodigy in music like Mozart was. Although Beethoven’s father was quite a singer‚ he never did match up to the music abilities that Beethoven’s grandfather had. The talent that the grandfather had‚ fortunately was present in Beethoven even though it was not present in his father.
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21) Rb2O 22) CaI2 23) Cs2O 24) MgI2 25) LiCl 26) BeBr2 27) Na2O 28) CaF2 29) BP 30) Al2O3 1) magnesium sulfide 2) potassium bromide 3) barium nitride 4) aluminum oxide 5) sodium iodide 6) strontium fluoride 7) lithium sulfide 8) radium chloride 9) calcium oxide 10) aluminum phosphide 11) potassium sulfide 12) lithium bromide 13) strontium phosphide 14) barium chloride 15) sodium bromide 16) magnesium fluoride 17) sodium oxide 18) strontium sulfide 19) boron nitride 20) aluminum nitride 21)
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Chemical Formulas Review: Nomenclature and Formula Writing Naming Simple Compounds There are four naming systems you should familiarize yourself with to succeed on the SAT II Chemistry exam. The trick is recognizing which naming system to use. Here are the guidelines: * If the compound starts with H‚ it is an acid. Use the naming acids rules. * If the compound starts with C and contains quite a few H’s and perhaps some O’s‚ it is organic. Use the naming organic compounds rules. *
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Health Assessment Exam #4 Chapter 21: Abdomen (approx. 21 questions) 1. Aortic pulsation a. Normally‚ you may see the pulsations from the aorta beneath the skin in the epigastric area‚ particularly in thin persons with good muscle wall relaxation. b. Marked pulsation of aorta occurs with widened pulse pressure (e.g.‚ hypertension‚ aortic insufficiency‚ thyrotoxicosis) and with aortic aneurysm. c. lateral pulsation with aortic aneurysm pushes the examiner’s two fingers apart. 2. Light
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Cancer: Silent Killer By: Wynne Michael David S. Gogo Submitted to: Ms. Katrina Q. Sundo Abstract Cancer nowadays is very widespread. But what is cancer? Cancer‚ known medically as a malignant neoplasm‚ is a large group of different diseases‚ all involving unregulated cell growth. In cancer‚ cells divide and grow uncontrollably‚ forming malignant tumors‚ and invade nearby parts of the body. The cancer may also spread to
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from test tube K-5 turned red litmus paper to blue which indicates a strong base (NaOH). Solutions in test tubes K-4 and K-6 are both strong acids which turned blue litmus paper to blue. Silver nitrate (K-7) produces precipitate with both acids and Barium nitrate can only produce precipitate with H2SO4 and it remains clear in HCl‚ K-3 precipitated with K-4 but did nothing with K-6‚ which proves that K-4 is H2SO4 and K-6 is HCl. Introduction: 1Water has many unique chemical and physical properties
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Abstract Gravimetric analysis describes the methods for finding the chemical constituent of analyte in a solution through analytical chemistry. This method uses the mass of solid SO42-‚ with an unknown quantity and quality‚ to qualitatively determine the makeup of the solid SO3-. Two separate experiments with the initial compounds of BaCl2 and SO42- were put into solution to allow for the BaSO4 precipitate to form. Through filtration and ignition of precipitate containing ashless papers
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cork or split stopper small rubber band crucible with cover balance lab burner Patt III‚ Percent Sulfate Test Materials alum crystals‚ KAl(S04)z·12H20 ring stand‚ ring‚ and clay triangle tongs or forceps alum crystals‚ KAl(S04)z·12H20 0.20 M barium nitrate solution ring stand‚ ring‚ and wire gauze 50 mL or 100 mL graduated cylinders glass stirring rod 250 mL beaker watch glass to fit the 250 mL beaker balance Gooch crucible filter apparatus rubber policeman or other scraping tool Advanced
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