Brief Historical Development and Contributions of Chemistry for Modern Civilization Introduction: As defined by Oxford Dictionary‚ Chemistry is the scientific study of the structure of substances‚ how they react when combined or in contact with one another and how they behave under different conditions . In other words‚ Chemistry is the study of the materials and substances of the world in which we live. The materials‚ which make up the earth‚ sea and air‚ are called raw materials. These include
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can tolerate = 2 Atm. Breathing pure oxygen 10m under water -> you will pass out in about 30 min.... Equator to north pole = 10‚000 km (The basis of the meter! A product of the French revolution. When was that? When real chemistry started= Lavoisier... Clue 1) Why did the war of 1812 (the war that defined Canada) happen? Clue 2) What even bigger invasion happened in 1812? 1) Napoleon! British prevented American commerce. 2) Napoleon invaded Russia (and collapsed!) . Napoleon was another product
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up to a higher shell if hit by an electron or a photon of light. • Purposed the Bohr’s model & Bohr –Rutherford diagrams 1790‚ Joseph Priestly • The first person who isolated elemental oxygen Antoine Lavoisier • Isolated and named Oxygen and Hydrogen • Discovered the law of conservation of mass (atoms are neither created/destroyed) & the law of constant proportions (elements combine in fixed ratios) • Wrote the 1st chemistry book (1789)
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modern chemistry and one of the pioneers of modern experimental scientific method. He separated chemistry from alchemy and gave the first precise definitions of a chemical element‚ a chemical reaction‚ and chemical analysis. At the same time Antoine Lavoisier who is known as the "father of modern
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products * Isabelo conception * Nutrition focusing on the vitamin. * Joseph priestley * He discovered oxygen * Armando kapuan * Mercuric contents * Ramon barba * Induced the flowering of mango trees * Antoine Laurent Lavoisier * Law of conservation of mass * Father of modern chemistry * Lords cruz * Conus snail sting * Julian banzon * Local materials LABORATORY PRECAUTIONS 1. INSIDE THE LABORATORY A. Do not eat food‚drink beverages
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Lewis People choose to see and hear things differently and the changing factor is their viewpoint on that subject. it also depends on what your profession is. “The voyage of discovery is not in seeking new landscapes but in having new eyes.” — Marcel Proust\ “You can complain because roses have thorns‚ or you can rejoice because thorns have roses.” — Tom Wilson Everyone has a thorn‚ but it can also be a rose. “All photographs are accurate. None of them is the truth.” — Richard Avedon Just because
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1 SOME BASIC CONCEPTS OF CHEMISTRY 1 UNIT 1 SOME BASIC CONCEPTS OF CHEMISTRY After studying this unit‚ you will be able to • understand and appreciate the role of chemistry in different spheres of life; • explain the characteristics of three states of matter; • classify different substances into elements‚ compounds and mixtures; • define SI base units and list some commonly used prefixes; • use scientific notations and perform simple mathematical operations on numbers;
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stem thermometers with a range of –10°C to +150°C. The wall clock was used to monitor elapsed time. The major piece of equipment used is the ice calorimeter‚ first described in 1780 by Antoine Lavoisier and Simon de la Place1‚ and modified for use in this course2. The device
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Shakib Sinha HIS 238.01 Mark Chambers May 6th‚ 2016. Wonder of Science Twentieth century science and theology had both produced whereabouts that eroded the older confidence of practitioners from both disciplines. This attrition was strengthened by world events as well. After two world wars and the immediate onset of a global nuclear threat it was not surprising that foundations had been shaken. With little certainty left‚ the world science had helped produce was thrown open to question. That
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Alchemy is Pretty Freaking Neat; Here is Why: When most people hear the word “alchemy‚” they envision wizards in dark robes chanting incantations over beakers of colored‚ smoking liquids. However‚ alchemy was much more than superstition. Not only does alchemy refer to the creation of gold from non valuable metals‚ but alchemy also refers to the quest to understand the relationship between humans and the cosmos‚ and the quest to use such knowledge to purify the human soul and achieve immortality (Khan
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