oxidation-reduction reaction of magnesium and hydrochloric acid solution. We compared the experimental measured amount of a product and the amount predicted by the theoretical calculation of a balanced equation: Mg (s) + 2HCl (aq) → MgCl2 (aq) + H2 (g) PROCEDURE First we obtained a strip of pre-cut magnesium ribbon‚ cleaned it with steel wool to remove any signs of oxidation from the strip (which would alter our results)‚ and then weighed it (individual masses of the magnesium strips for each trial can
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home. Last week on my home from Tampa‚ I was riveted to the Glamour article “The Secret Way People Are Judging You.” In this article they revealed the results of a poll of more than 1‚800 women revealing what they thought about women of various weights. From Glamour’s “Skinny Witch vs. Chubby Fairy” Heavy women were pegged as… All women--skinny or overweight--are being judged with characteristics based only on their size! “lazy” 11 times as often as thin women; “sloppy” nine times;
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The Weight Of The Nation The first film in "The Weight of the Nation" series is about the obesity epidemic and the serious health consequences of being over weight or obese. The first character in the film is Cindy. She was born and raised in Bogalusa‚ Louisiana. Cindy was only 99 pounds when she got married‚ she has struggled with her weight ever since her first pregnancy and it has only gotten harder for her. Health in the early childhood can have serious consequences later on in life. The
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Atomic energy is energy produced by atoms. The term originated in 1903 when Ernest Rutherford began to speak of the possibility ofatomic energy.[1] The term was popularized by H. G. Wells in the phrase‚ "splitting the atom"‚ devised at a time prior to the discovery of the nucleus. Atomic energy also may refer to: * Nuclear binding energy‚ the energy required to split a nucleus of an atom * Nuclear potential energy‚ the potential energy of the particles inside an atomic nucleus * Nuclear
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Chemistry Lab Report example: Chemistry Laboratory Report (Magnesium Oxide) INTRODUCTION: As we learned before on how to determine the empirical formula of a compound based on the test and also chemical analysis on it. Hence this experiment is mainly goes around with how to determine the empirical formula of Magnesium Oxide following various tight procedures in order to get the knowledge and apply it onto another compounds. We are investigating the empirical formula of Magnesium Oxide in this
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Tips on Weight Loss and Weight Management These days‚ many teenagers are very concerned about their weight. Many go on crash diets hoping to be transformed into models with svelte figures. Some‚ who are already slim‚ embark on such diets to become as skinny as Victoria Beckham. The seriousness with which teens tackle weight issues is worrying as the methods they use‚ such as going on crash diets and consuming slimming pills‚ are harmful. This article is therefore written with the aim of giving sensible
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Atomic Theory Essay We are first going to talk about Protons‚Neutrons and Electrons. These three elements are a very good example of most things that are in use of gas fumes. It all started when Protons and neutrons where‚ Protons were discovered by Experimenting with discharging tubes. Eventually they found out the rest of the Atoms over time. Which brings me into the word of Orbital. Orbital is a Neutron‚ electron or a proton Going around a single atom with certain amounts of energy levels. Which
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My topic is the atomic bomb. Two questions I have are one‚ why did the atomic bomb happen? Two‚ how did the atomic bomb change the world? The sub-topics introduce the Manhattan project. Japan refused to surrender‚ why the United States dropped an atomic bomb on Hiroshima and Nagasaki? The atomic bomb was first used in warfare at Hiroshima and Nagasaki in august 1945‚ and the bomb played a key role in ending World War II. The Atomic bomb created the Manhattan project. The Manhattan
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The Rutherford Model of the Atom 1. In 1911 Rutherford proposed the nuclear model of atomic structure. He suggested that an atom consists of a central nucleus (where most of the mass of the atom is concentrated) having a positive charge‚ surrounded by moving electrons carrying negative charge. Geiger and Marsden carried out an experiment to verify his proposal. The Geiger/Marsden a Particle Scattering Experiment 1. The apparatus is illustrated in the diagram below. | 2. The apparatus
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1.1 The atoms‚ during bond formation‚ may lose or gain electrons (valence electrons) in order to achieve a stable state‚ or technically speaking‚ a stable electron configuration. Usually metal atoms lose electrons and non-metals gain electrons in order to achieve electron stability. When dealing with bond formation (Ionic bonding for example) we need to analyse the outer shell of the atom. Metals usually present 1‚ 2 or 3 electrons in their outer shell therefore they have to give them away to achieve
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