If we go back to the history of 1945‚ we come to know the history of 1945; we come to know the worst type of nuclear disaster the world had witnessed. On August 6‚ 1945 an atom bomb was dropped on HIROSHIMA in Japan‚ which devastated the entire town killing 66‚000 people and injuring nearly 69‚000. On August 9‚ 1945 another atom bomb was dropped on NAGASAKI. This bomb killed nearly 39‚000 people and injured more than 25‚000. Nuclear weapons are thus‚ far more destructive and harmful to the society
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while others have to buy water or walk for miles to attain enough water to survive. In many cases water is being wasted. Hydrogen bonding holds water molecules together. At 32 degrees the kinetic energy is so low that the water freezes. When the temperature rises the kinetic energy thaws and we then have liquid water again. When the molecules absorb energy from the sunlight evaporation takes place and this is called water vapor which is
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Atoms make up everything around us‚ including ourselves. They consist of protons which give off a positive charge‚ electrons which give off a negative charge and neutrons which have no charge. In an atom there are the same amount of protons as there are electrons. If there weren’t it would cause the atom to behave differently. Atoms have layers around them called shells which contain electrons. Each shell can only hold a certain amount of electrons. Molecules can be multiple atoms of the same element
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The Periodic Properties of Atoms The Periodic Table: In the 1870’s‚ the Russian chemist Mendeleev developed the periodic table‚ based upon the relationship between the atomic weights of the elements and their chemical properties. As one ascends from lightest to heaviest elements‚ there is a periodic recurrence of chemical properties. For example‚ the elements with atomic numbers 2‚ 10‚ 18‚ 36‚ 54‚ and 86 all are chemically inert (the noble gases)‚ while those with atomic numbers one greater 3‚ 11
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Campbell’s Biology‚ 9e (Reece et al.) Chapter 5 The Structure and Function of Large Biological Molecules In Chapter 5‚ the principles of chemistry covered in earlier chapters are applied to the understanding of biological polymers and lipid membranes. The emphasis is on properly linking monomers and their polymers‚ and on the structural and functional diversity of the different polymer types. Particular attention is given to protein structure‚ because this is central to understanding subsequent
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ganiceWorksheet 3: Organic molecules This section will dealt with the main organic molecules in living things: carbohydrates‚ fats ( lipids )‚ proteins and nucleic acids. A) Web site name: Florida State College Jacksonville Web URL: http://web.fscj.edu/David.Byres/foodfiles.htm Read “Carbohydrates” 1) What does the body use carbohydrates for? One of the main jobs of carbohydrates is to provide fuel for the body to do its job. So if we want to run or walk somewhere or play sports or even
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Title: Benedict ’s test for Reducing Sugars Testable Question: Are all carbohydrates reducing sugars? Hypothesis: If the carbohydrate contains available ketone or aldehyde molecules then they are reducing sugars. Variables: a. Independent: Function groups react w/ reagent b. Dependent: Color change (red‚ orange‚ yellow) Control: Water Materials: - 4 mL of each solution (Water‚ Starch‚ Glucose‚ Maltose‚ Sucrose‚ Onion Juice‚ Potato slice‚ Milk) - 8 test tubes
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The reason that I am interested in doing my research essay on the Atom Bomb is because I have always been interested in politics. How our world works‚ and what has effected it’s course‚ in my opinion‚ is one of the most important subjects to learn among our peers. After careful thought‚ I chose the atomic bomb because it is one of the few past inventions that still threaten us today. My base intention is to try an understand why men desired such an easy‚ yet consequential‚ means of war. What drives
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Hi‚ my name is water molecule! H2O for short. I live in the bottom of a well. I come from 2 hydrogen atoms‚ but I have an oxygen atom in me! Down here in my well‚ we have a swell time together. In our liquid state‚ we are not too far apart‚ nor too packed together. It’s really great being a liquid! I feel bad for my cousin CO2. He is probably sublimating into a gas from a solid‚ or as a gas‚ freezing back into a solid. He has no melting point‚ only a freezing and boiling point. I’m SO glad I will
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Ellen Grant Honors Bio I Organic Compounds Problems and Objectives: The purpose of this lab was to select the suitable test for an organic molecule and define the safe process for that test. An organic molecule is normally found in or produced by living systems. (Unknown Author‚ 2014‚ www.biology-online.org/organic_molecule)In this lab one was supposed to infer the results of the test and be able to identify if major biomolecules are present. You were to analyze a variety of tests including
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