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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As a form of metal detecting‚ beach metal detecting has grown immensely in popularity over recent years. Not only is it a fun‚ healthy‚ outdoor activity but with more and more people on public beaches these days it can be profitable as well. Here are some basic tips to help you enjoy and profit from detecting on the beach and sand: TIP #1 While all-round detectors have led good finds‚ to be really successful in beach metal detecting you need a specialized detector. Using normal metal detectors make
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themes of identity in ’An Unknown Girl? Moniza Alvi was born in Pakistan. Her father was Pakistani and mother English. She left Pakistan when she was a baby for England. The poet is caught between two worlds and her poems exemplify her quest for her cultural identity. The prescribed poem appears to be set in India. Pakistan was a part of India before the partition‚ therefore the setting may be a symbolic thirst for her motherland. The title of the poem is “The Unknown Girl”‚ though it may refer
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Metals and Rusting Iron Alquero Rollon Title “ The Effect of Various Metal Activity (Zinc (Zn)‚ Magnesium (Mg)‚ and Copper (Cu)) in the Color of Rainwater and Amount of Rust in the Iron Nail “ Hypothesis If the type of metal that has the highest activity will be used ‚ then there will be the least amount of rust found in the nail and the color of the rainwater would be the lightest. Independent Variable • Types of metals used in wrapping Title: “ The Effect of Various Metal Activity (Zinc
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Micrococcus Luteus and an unknown bacteria from a sponge. Dependent Variable The dependent variable is the factor that is being tested which is the size of the zone of inhibition from the detergent solution and the bacteria. It will be measured in millimetres using a ruler. Constant Variables Constant Variables are set in place in order to produce a fair and even result across all tests conducted within the experiment. Amount of solution of dishwashing detergent used on each test is the same.
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Exp. 2 Separation of Three Compounds by Extraction Introduction: The purpose of this experiment is do demonstrate the proper procedures of extraction and to develop a practical understanding of this method. In this experiment‚ extraction is used to separate a known acid‚ base‚ and neural compound from each other. The first two compounds undergo proton transfer reactions in the presence of acids or bases. Acids RCOOH‚ like benzoic acid‚ was deprotonated to form RCOO-. Bases RNH2‚ like ethyl 4-aminobenzoate
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on the subject lines. Multiple Choice: True/False (5-2) Compounding 1. F J Answer: aEASY Starting to invest early for retirement increases the benefits of compound interest. a. True b. False (5-2) Compounding 2. F J Answer: bEASY Starting to invest early for retirement reduces the benefits of compound interest. a. True b. False (5-2) Compounding 3. F J Answer: aEASY A time line is meaningful even if all cash flows do not occur annually. a. True b. False
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1. Create and complete a data table for Part One of the lab. It should include the name of the element (or unknown) examined and the color of the observed flame 2. Identify each unknown from Part One of the lab and briefly explain why you identified each unknown as you did. Part Two (Spectroscopy): 1. Create and complete a data table for Part Two of the lab. It should include the name of the element‚ the colors‚ and the wavelength values of the observed lines. 2. Describe the line spectrum
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Season 1: Metal Fusion Beyblade: Metal Fusion is the first season of the Metal Saga. The series stars Gingka Hagane‚ a talented blader traveling all around Japan to get stronger so he can defeat the Dark Nebula‚ an evil organization who is also responsible for the death of Gingka’s father Ryo Hagane. Gingka aims to recover the forbidden bey‚ Lightning L-Drago‚ which has been stolen by the Dark Nebula to use its powers to fulfill their wicked ambitions. Along with his bey‚ Storm Pegasus‚ Gingka must
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The Physical Properties of Eleven Chemical Compounds Problem: Discover whether various chemical compounds are molecular or ionic and if they are acidic or basic. Hypothesis: If the compound is ionic‚ then it will be soluble because the energy given off water molecules compensates for the energy needed to break ionic bonds‚ also‚ if the compound is Ionic‚ it will be an electrolyte‚ because they mostly break up into ions when in water. If the compound is molecular‚ then it will be soluble‚ it cannot
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