who was the person to prove air is a mixture of gases ?
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The first clue that certain gases could be distinguished from ordinary air was discovered around 1630 by Jan van Helmont, who introduced the term gas. During the rest of the century, scientists learned more about air, and the barometer was invented for measuring air pressure. During the 1700s, the individual gases contained in air were being investigated, but chemists were still confused about how to define them. Gases were called " airs" because scientists thought that they were just contaminated forms of air.\n\nChemists also argued about the role of different gases in the processes of combustion, or burning, and respiration, or breathing. Today we know that these processes use oxygen and produce carbon dioxide. But at that time, scientists had only a vague notion of these basic chemical reactions. At first they tested their ideas by such simple experiments as burning candles inside a glass jar with a limited supply of air, or enclosing birds and small animals in a jar to see how long they were able to breathe. German chemist George Ernst Stahl proposed that a substance called phlogiston was what gave materials their ability to burn. Supposedly, phlogiston was released from burning materials and absorbed by the air. Despite some controversy, the phlogiston theory was widely accepted for many years and resulted in the discovery of several gases.\n\nThen in the 1770s, Antoine-Laurent Lavoisier developed the modern theory of combustion, which replaced the phlogiston theory. Lavoisier proved that air is composed mainly of two gases--one that supports combustion and one that does not. Lavoisier showed that during combustion a portion of the air (about one-fifth) combines with the substance being burned and adds weight to the resulting compound. The rest of the air, which is inactive, is left behind. Then Lavoisier reversed the process, showing that when the compound is decomposed, the original active portion of the air is released. When this portion is mixed with the inactive air, the mixture is the same as ordinary air. Lavoisier named the active gas "oxygen " and called the inactive portion of air azote..\n\nAlthough Lavoisier clarified the process of combustion, other chemists before him had already discovered most of the gases contained in air and had begun studying their properties. In 1772 Carl Wilhelm Scheele discovered oxygen, which he called " fire air." He also showed that air contains another gas, "foul air," which does not support combustion. But publication of Scheele 's report was delayed, and Joseph Priestley is usually credited with oxygen's discovery. The gas that Lavoisier called azote is known today as nitrogen. It was first identified in 1772 by Daniel Rutherford\n\nIn the late 1700s, Henry Cavendish determined that air contains about 21 percent oxygen. More than a hundred years later, William Ramsay discovered that a small percentage of air--about 1 percent--is composed of inert gases, mainly argon. The remaining 78 percent of air is nitrogen, although carbon dioxide is also present in tiny amounts (about 0.03 percent). In a series of some 400 experiments, Cavendish also found that the composition of air is virtually the same, regardless of the air's geographic origin. His results were confirmed during the late 1800s, when more precise scientific studies showed that air's composition is the same all over Earth.\n\nThe air's gases are responsible for making the sky appear blue. Gas molecules scatter the Sun's light, and the blue color in the light's spectrum is scattered more thoroughly than other colors. Normally air also contains some moisture, or water vapor, which we measure as humidity, as well as small particles of dust suspended in the air's gases. Moisture and light combine to create such spectacular visual effects as rainbows and sunsets. Unfortunately, today's air also contains many pollutants such as ozone, sulfur dioxide, a
1066619
How very astute.  Fluids form mixtures and circulate based on different things, like pressure and heat.\n\nBut the gases do form layers.  Who said they don't?
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In ancient Greece, Democritus espoused the theory that all matter is made up of tiny, indivisible particles called atoms.  This was in contrast to Aristotle's theory of the four elements: earth, air, fire, and water, which was the dominant theory for many centuries.\n\nDalton was the first to formulate a universal atomic theory of chemistry, which revived the old atomic theory of Democritus but also greatly expanded on the concept.  Dalton introduced the idea that atoms of different types have different weights. He also introduced the law of multiple proportions, which states that elements combine in specific proporions to create compounds, but not in-between proportions. Dalton said that atoms of different weights combined in specific ratios produce specific chemical compounds. In summary, the five main points of Dalton's atomic theory are:\n1. Elements are made of tiny particles called atoms. \n2. All atoms of a given element are identical.\n3. The atoms of a given element are different than those of any other element.\n4. Atoms of one element can combine with atoms of other elements to form compounds. A given compound always has the same relative numbers of types of atoms. \n5. Atoms cannot be created, divided into smaller particles, or destroyed in the chemical process. A chemical reaction simply changes the way atoms are grouped together.
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There is a body of evidence to support this theory.  See article at following link   www.gasresources.net/Introduction.htm.  The site www.gasresources.net has several other interesting articles.
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I don't think a lot of people read this. It is interesting information. I had to take a tree hugger science last year and one of the things the professor admitted to is that another one of the destructive gases to the ozone that they beleive is causing the global warming is ethanol, and uria, which are both caused by natural body occurances, the ethonal comes from Pooh, while the uria comes from Urine. Not just human but animal as well. I personally don't know, but am refreshed to see another prospective on the whole thing. Now they can prove all of it, inclucding the CFC part Maybe we can all use Aqua Net again.
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the person who discovered the cycle of rocks discovered the rock cycle
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hey! Air is a mixture of gases thus it is solution, it contains Nitrogen-78%, oxygen-20.9% carbon dioxide0.003% and some rare gases
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The air that we breathe...\nOxygen, carbon dioxide, water vapour, neon gas... dissolved in the solvent of nitrogen.
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Because they wrongfully equate two processes of belief-systems.  To believe in the existence of air particles, or in anything sub-atomic for that matter, you rely on logical evidence as the basis: expert research and testimony (i.e., scientific reports published in academic journals), information you gather from your own five senses, etc.  On the other hand, in the religious sense belief involves having faith in something (e.g., a God) irrespective of whether or not the believer has logical evidence of that something's existence.  \n\nYou've basically answered your own question -- there is no logical evidence in God (only anecdotal), but there is plenty of evidence for the existence of something such as hydrogen, nitrogen, and oxygen atoms.  The reason for why such a wrong argument is made is simply to have made the argument in the first place -- basically, so that intelligent people will discuss it, and that they as the people submitting the argument, therefore, gain a sense of credibility, since they then would have been able to receive attention from intelligent sources.  For example, if you happened to ask the question from the perspective of someone who really did make this kind of fallacious argument, then I wouldn't be doing the pursuit of science/logic any good by responding.  (But that's not the case here.)
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Nikola Tesla.\n\nBecause he thought it wouldn't cause lights to flicker for anyone.
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A mixture of H2O and air pollution...
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Chemistry really started to be differentiated from alchemy in the 1650s and 60s by an Irish gentleman name Robert Boyle.  His work _The Sceptical Chymist_, which is seen today as the cornerstone of modern chemistry, took the concepts of late alchemy and the methodical reasoning of early physics and combined them into an entirely new discipline.
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Who created that "all matter and energy".  Who caused that concentrated mass of material to explode.  Who created that single-celled organism.\n\nyes, i believe God is the origin of everything.
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Oxygen was discovered for the first time by a Swedish Chemist, Carl Wilhelm Scheele, in 1772. Joseph Priestly, an English chemist, independently, discovered oxygen in 1774 and published his findings the same year, three years before Scheele published. Antonie Lavoisier, a French chemist, also discovered oxygen in 1775, was the first to recognize it as an element, and coined its name "oxygen"
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It very debatable, but the most likely person was John Dickenson.\nhttp://www.chron.com/content/chronicle/editorial/98/07/05/7-5-safire.0-0.html
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Euclid.\nGreek geometer who wrote the Elements , the world's most definitive text on geometry. The book synthesized earlier knowledge about geometry, and was used for centuries in western Europe as a geometry textbook. The text began with definitions, postulates ("Euclid's postulates "), and common opinions, then proceeded to obtain results by rigorous geometric proof. Euclid also proved what is generally known as Euclid's second theorem:  the number of primes  is infinite.  The beautiful proof Euclid gave of this theorem is still a gem and is generally acknowledged to be one of the "classic" proofs of all times in terms of its conciseness and clarity. In the Elements , Euclid used the method of exhaustion and reductio ad absurdum. He also discussed the so-called Euclidean algorithm  for finding the greatest common divisor  of two numbers, and is credited with the well-known proof of the Pythagorean theorem. \nNeither the year nor place of his birth have been established, nor the circumstances of his death, although he is known to have lived and worked in Alexandria for much of his life. In addition, no bust which can be verified to be his likeness is known (Tietze 1965, p. 8).
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Actually when pure oxygen was first produced among tests of flammability somebody decided to put an animal in an enclosure with pure oxygen.  I think it was a mouse.  They observed that the mouse lived significantly longer in pure 02 than in normal air.