tasks such as bleaching cloth and preserving wine. The ancient Greeks were known to use sulfur as a fumigant. Because sulfur has been used since ancient times‚ no one is credited with its discovery; however‚ Antoine Lavoisier was influential in the acceptance of sulfur as an element. Lavoisier pushed for sulfur to be classified as an element in 1777 and faced controversy in 1808 when Humphry Davis disagreed‚ stating that he discovered hydrogen inside his sulfur sample. It was later concluded
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compounds of them. In the late 1700s‚ the first extensive list of elements was created. It was created by Antoine Lavoisier‚ a French chemist. The first list contained 33 elements and was distinguished between metals and non-metals‚ dividing the few known elements into four classes. He devised a naming system for the discovery of new elements. Additionally‚ Antoine Lavoisier was the first chemist to define an element as a substance that cannot be broken down by chemical means. His findings greatly
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for granted that in every reaction there is an equal quantity of matter before and after.” He was able to establish the science of Modern Chemistry. Who was this famous chemist? a. John Dalton c. Robert Boyle b. Alexander Fleming d. Antoine Lavoisier 6. Jack and Rose gather information using their five senses. What are they doing? a. stating their conclusion b. gathering data through observation c. formulating hypothesis based on the gathered data d. measuring the exact quantity compared
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------------------------------------------------- PASSWORDS * Special Passwords In versus mode‚ enter the following info to get the desired effect: Effect | Password | Boss: High Abbott (appears in invisible box in lower right-hand corner) | J Rubin‚ Jan 6 1970 | Boss: Kull (appears in invisible box in lower right-hand corner) | A Gavin‚ Jun 11 1970 | Character: Black Dragon | Eyvern‚ March 9‚ 1927 | Character: Gulab Jamun | Gulab‚ February 29‚ 1900 | Character: Major Trouble |
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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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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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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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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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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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