"Experiment 12 the alkaline earths and the halogens" Essays and Research Papers

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    Experiment 2: The Alkaline Earths and the Halogens: Two Families in the Periodic Table Lab Report By: YOU Introduction: The purpose of this lab was to find the relative solubilities of some salts of the Alkaline Earths and use that information to find the order which they appear in the periodic table; also use that information to efficiently find an unknown alkaline earth halide. Also to find the relative oxidizing powers of the Halogens given and using that information finding the order of

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    Experiment Five – Group Chemistry The Alkaline Earths and the Halogens: Two Families in the Periodic Table Prelaboratory Questions 1. All of the common noble gases are monatomic and low-boiling. Their boiling points in °C are: Ne‚ –245; Ar‚ –186; Kr‚ –152; Xe‚ –107. Using the Periodic Table‚ predict as best you can the molecular formula and boiling point of radon‚ the only radioactive element in this family. _______________________ ____________________°C Molecular Formula

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    Alkaline Earth Metals

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    ALKALINE EARTH METALS  what are alkaline earth metals?  Alkaline earth metals are elements that are in the second group of the periodic table. the elements have two  electrons on the outermost shell. the elements include  Beryllium‚ magnesseum‚ calcium‚strontium‚ barium  and Radium.The alkaline earth metals are all silver­colored and soft‚ and have relatively low  densities‚ melting points‚ and boiling points. In chemical terms‚ all of the alkaline metals react  with the halogens to form the alkaline earth metal halides 

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    Laboratory# 26 Group 2: The Alkaline Earth Metals Period E Bautista‚ Angel Table D Comer‚ Tyler 3/22/12 Sullivan‚ Brittany Truong‚ Phuoc Conclusions and Questions 1. Step 1: Ca(s) +H2O->Ca (OH)2(aq)+H2(g) Step 4: Mg(s) +H2O->Mg (OH)2(aq)+H2(g) Step 10: CaSO4 + H2O-> Ca(OH)2 + H2SO4 MgSO4 + H2O ->Mg (OH)2 + H2SO4 Barium Sulfate: No reaction Step 13: MgCl2 + Na2CO3 -> MgCO3 + 2NaCl CaCl2 + Na2CO3 -> CaCO3 + 2NaCl

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    The Halogens

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    * The halogens can be found on the left-hand side of the noble gases. * These five toxic‚ non-metallic elements make up Group 17 of the periodic table and consist of: fluorine (F)‚ chlorine (Cl)‚ bromine (Br)‚ iodine (I)‚ and astatine (At). * Although astatine is radioactive and only has short-lived isotopes‚ it behaves similar to iodine and is often included in the halogen group. * Since the halogen elements have seven valence electrons‚ they only require one additional electron to form

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    to 20: Select the best answer to each question. Note that a question and its answers may be split across a page break‚ so be sure that you have seen the entire question and all the answers before choosing an answer. 1. The two most well-known alkaline earth metals are A. calcium and magnesium. B. magnesium and barium. C. strontium and radium. D. calcium and barium. 2. Refer to the periodic table of elements (Figure 30 in your study unit) to help you answer

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    Alkaline Soil

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    Alkaline soil is referred to by some gardeners as”sweet soil”. The pH level of alkaline soil is above 7‚ and it usually contains a great deal of sodium‚calcium and magnesium. (1) Alkaline soil occurs in areas with high limestone content‚ easy souble phosphorus and calcium binding‚ formation of insouble calcium salts of phosphorus‚ reducing the effectiveness of phosphorus. Also‚ in calcareous soils‚ boron‚ manganese‚ molydenum‚ zinc‚ iron greatly reduces the effectiveness of the crop often feel inadequate

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    Sierra Silva‚ Renata Beyer Perch Chemistry 171 20 October 2014 Periodicity of the Halogens Goal: To design and carry out an experiment that will give enough data to rank the three halogens from highest to lowest electron affinity. Background: The three aqueous solutions given in this experiment are Iodine‚ Bromine‚ and Chlorine; they are all non-polar and dissolve easily in Hexane which is also non-polar. When there is a color change in a mixture that means that it reacted and that there was a double

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    Metals and Halogens reactions Elements such as fluorine‚ chlorine‚ bromine‚ iodine‚ and astatine belong to Group 7‚ Halogens. At room temperature‚ fluorine is a yellow gas‚ chlorine is a pale green gas‚ bromine is a red liquid‚ and iodine is a purple solid. Astatine is a radioactive element‚ therefore it exists only in small amounts. All the halogens exist in diatomic molecules. They have high ionization energies and are the most electronegative elements. Their electron configuration ns2 np5 make

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    Alkaline Batteries

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    Division of City Schools City of Mandaluyong Science High School E. Pantaleon St. Hulo‚ Mandaluyong City BLACK MIX FROM ALKALINE BATTERIES AS PIGMENT FOR THE MANUFACTURE OF INKJET PRINTER-FRIENDLY INK Submitted in partial fulfilment of the requirements in Research II By Psalm Israel Rendon Hazel A. Lunas Diane Clarisse Ortega IV-Chlorine SY 2011 -2012 September 2011 TABLE OF CONTENTS TITLE PAGE.........................................................................

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