Chemical Report The chemical I will be writing this report on is oxygen. The name oxygen comes from the Greek word “oxygens‚” which means “acid producer”. Dictionary.com defines oxygen as “a colorless‚ odorless‚ gaseous element constituting about one-fifth of the volume of the atmosphere and present in a combined state in nature.” Oxygen has many uses today. First‚ oxygen is used by people‚ plants‚ and animals in the respiration process. Tanks of oxygen are used in the healthcare field to treat
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FILIPINO CHEMISTS 1.) William Padolina William Padolina‚ Secretary of the Department of Science and Technology‚ is a man of exceptional vision who sees clearly the whole socio-economic panorama unfolding and understands the implications of the crests and troughs in the pre- millenium landscape. The contributions of William Padolina in chemistry include research into the derivatives of coconut fatty acids. He is also well known for his many awards and years teaching. 2.) Clara-Lim Sylianco
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We breathe it and burn fuels in it. Plants use it to grow. It is all around us but we hardly notice it except when the wind blows. Aircraft and birds fly in it. More than one hundred kilometres above us‚ satellites look down through it. In the apparatus shown here‚ air is passed from one syringe to the other while the copper in the tube is heated. The oxygen from the air joins with the copper‚ so the volume of the air gets smaller. The amount of oxygen in the air is the difference in
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particles of all shapes and sizes”. Boyle said that these particles were the basic building blocks of everything. They come in all shapes and sizes. These particles would later be called atoms and put into the table of elements by Antoine Lavoisier. Lavoisier was able to show that chemicals combined to make things‚ such as oxygen and hydrogen forming water. This was the beginning of modern
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when he observed that mercuric oxide‚ on heating. Yielded a gas that caused a flame to burn faster. He later found that it could support respiration and therefore he named it dephlogisticated air. It wasn’t until a French chemist Antoine Laurent Lavoisier found it to be an elemental gas. It received it’s current name in s1787 when several French Chemist’s including Lavoiser found that it formed acids from certain oxides of sulfur. The name oxygen literally means (acid former). Oxygen in everyday
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Theory of Knowledge Essay on prescribed title Word Count: 1587 Date: January 2008 [This essay scored 36/40 : an A grade. MF ] “History is always on the move‚ slowly eroding today’s orthodoxy and making space for yesterday’s heresy.” Discuss the extent to which this claim applies to history and at least one other area of knowledge. In order to find out if the claim applies to the areas of knowledge history and chemistry I will break the question down in three parts. Firstly I ask if
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Antoine-Laurent de Lavoisier | Published a textbook that contained a list of elements‚ or substances that could not be broken down further‚ which included oxygen‚nitrogen‚ hydrogen‚ phosphorus‚ mercury‚ zinc‚ and sulfur. It also forms the basis for the modern list of elements. | Johann Wolfgang Döbereiner | Found that some elements formed groups of three with related properties. He termed these groups "triads". In all of the triads‚ the atomic mass of the second element was almost exactly the average
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when a man named Antoine Laurent Lavoisier wanted to know about the importance of chemical changes. Also‚ in the 19th century‚ John Dalton made the atomic theory. Dalton said that bonding atoms together makes new substances‚ which is a chemical reaction (History of chemical reactions). The definition of chemical reaction is‚ “the processes in which substances undergo chemical changes‚ which results in the formation of new substances.” This is what Dalton and Lavoisier tried to explore (History of chemical
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experiences‚ you will be able to use those in your careers.) * Quote: “you can observe a lot by watching”---yogi Berra(new York Yankee) “the real act of discovery consist not in finding new lands‚ but in seeing with your eyes. ---marcel Proust
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Lab Partners: Matt Hattenburg & Peyton Dannewitz Chemistry A Dr.Clark Date: March 18‚ 2015 Introduction: The Law of Conservation of Mass states the matter can neither be created nor destroyed. Antoine Lavoisier is credited with the discovery of the Law of Conservation. Lavoisier carried out his ideas as early as 1774. The Law of Conservation has been proven by a variety of experiments. For example‚ if you were to light a candle in completely closed room the mass of the room before l
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