Study of the first element – Hydrogen. Answer the following questions:- 1. Give a reason why hydrogen can be placed in group 1[IA] and group 17[vIIA] of the periodic table. 2. What similarities does it show with group 1[IA] and group 17[VIIA]. With special reference to valency electrons and ion formaton and examples. 3. How does hydrogen occur in the free and combined state? 4. Which metals react with cold‚steam and boiling water to form their respected oxides and hydroxides ? Give examples and
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Gresham states that children with emotional disturbance can be disruptive in the classroom. Unfortunately these students are often underserved in the school setting‚ which is often the result of the inability to properly identify students with emotional disturbance. Once emotional disturbance is suspected‚ issues often can be addressed during the response to intervention process. During RTI the following factors must be taking in consideration: severity of behavior‚ chronicity of behavior‚ generalizability
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complaint is bloody diarrhea? Will these questions vary depending upon the child’s age? Why or why not? What clinical or historical findings will indicate the need for diagnostic studies and why? Which diagnostic studies will you initially order and why? When caring for a pediatric patient with complaints of bloody diarrhea asking appropriate questions to narrow the diagnosis and identify the severity of the condition is important. Questions to include‚ when did the diarrhea start and how long has
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One possible explanation for Mary’s sudden diarrhea is food poisoning. Since Mary is stated as being in “reasonably good health‚” a sudden occurrence of diarrhea can be a sign of such an infection (Whitney‚ Rolfes 90). Another thing that could cause the diarrhea is a side-effect from the drugs Mary is taking daily. Diarrhea is a known potential side-effect of over-the-counter drugs (Whitney‚ Rolfes 90). As for the cramps‚ they can be caused by a lot of things‚ but my conclusion would have to be that
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Diarrhea vs. Thrush You know that feeling where you need to use the toilet so bad and you rush to the bathroom and don’t know if you’re going to make it? That feeling is diarrhea. Diarrhea describes loose‚ watery feces. It is a common condition that isn’t usually serious. It lasts about two to three days in most cases and can be treated with over the counter medication. The most common cause of diarrhea is stomach or intestinal flu. If the digestive tract recognizes a substance ingested to be
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table List of Polyatomic Ions that Must be Memorized for General Chemistry Polyatomic Cation: NH4+ ammonium ion Polyatomic Anions Ionic Charge: Oxyanions: ClO4– perchlorate ion ClO3– chlorate ion – ClO2 chlorite ion ClO– hypochlorite ion -1 Ionic Charge: Oxyanions that Contain Hydrogen: HCO3– bicarbonate ion or hydrogen carbonate ion HSO4– bisulfate ion or hydrogen sulfate ion NO3– NO2– nitrate ion nitrite ion MnO4– permanganate ion H2PO4– Others: CN–
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towards improving the educational outcomes for disabled students‚ especially those eligible under “Emotional Disturbance” (ED). Statistical analysis of disabled students protected under the Individuals with Disabilities Education Act (IDEA)‚ demonstrate that most students at risk for EBD have significant academic deficits from the beginning of their school careers. Between 1961 and 2000‚ about 91% of studies examining the academic status of students with EBD found significant educational deficits
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Hydrogen Summary * This is how hydrogen fuel cells work: 1. Gas stored in tanks 2. Atoms reach anode 3. Become hydrogen ion and a free electron 4. Ion goes through electrolyte layer 5. Hydrogen ion passes‚ but free electron does not 6. Free electron runs through external circuit from anode (-) to cathode (+) 7. Current of electrons creates electricity 8. Hydrogen ion enters cathode and combines with oxygen to become water which is better for the ecosystem because
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single proton results in the monovalent hydrogenoxalate anion HC2O4−. A salt with this anion is sometimes called an acid oxalate‚ monobasic oxalate‚ or hydrogen oxalate. The equilibrium constant (Ka) for loss of the first proton is 5.37×10−2 (pKa = 1.27). The loss of the second proton‚ which yields the oxalate ion has an equilibrium constant of 5.25×10−5 (pKa = 4.28). These values imply that‚ in solutions with neutral pH‚ there is no oxalic acid‚ and only trace amounts of hydrogen oxalate.[1] The
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"An Ecosystem ’s Disturbance by a Pollutant Paul Cordova L. Lehr December 11‚ 1995 Freedman defines a pollutant as "the occurrence of toxic substances or energy in a larger quality then the ecological communities or particular species can tolerate without suffering measurable detriment" (Freeman‚ 562). Although the effects of a pollutant on an organism vary depending on the dose and duration (how long administered). The impact can be one of sublethality to lethality‚ all dependent upon the factors
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