noble. l Carbon (C) - can take the form of one of the hardest substances (diamond) or one of the softest (graphite).And it’s made in the interiors of stars‚ though it was not produced in the Big Bang. l Helium (He) - element named after the Greek Sun God(Helios) .Helium balloon floats because Helium is lighter than air. Also If you breathe it‚ you’ll get a squeaky voice and it’s expelled with alpha radiation. l Holmium (Ho) -This metal has been used to create the strongest artificial magnetic fields
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Cant see it but not a hole‚ gravitational force = so strong you cant see it‚ hence an absence of light = black hole (even though its technically not a hole). Polaris = North Star Constellations Stars = Fusion reactors of gases. (Hydrogen + Helium) Them fusing = chain effect. Interstellar dust coming together through mutual gravitational attraction Nebulae = Dying star after its gone supernova./Cloud of gas and dust in space. Nuclear Fusion = Very high temps are needed in order to
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1. Physical Properties of Water and Ice 1. Molecular Weight: A. 18.01528 g/mol Water‚ Molar mass Triple Point The temperature and pressure at which solid‚ liquid‚ and gaseous water coexist in equilibrium is called the triple point of water. This point is used to define the units of temperature (the kelvin‚ the SI unit of thermodynamic temperature and‚ indirectly‚ the degree Celsius and even the degree Fahrenheit). As a consequence‚ water’s triple point temperature is a prescribed value rather
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bang is the nuetrons. Protons plus electrons = hydrogen. Hydrogen fuses the helium. There are no stable atoms with 5 or 8 nucleons (hydrogen would have 5‚ helium would have 8)‚ therefore fusion stops at helium. Normal steller processes Elements form by fusion of lighter elements and heavier elements into heavier elements. They release energy. Elements with mulitples of 4 nucleons are most abundant because they combine helium. Fusion stops at iron Supernova processes R‚ S‚ P processes form elements
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THE SOLAR SYSTEM T The Solar System consists of the Sun and the astronomical objects gravitationally bound in orbit around it‚ all of which formed from the collapse of a giant molecular cloud approximately 4.6 billion years ago. The vast majority of the system’s mass (well over 99%) is in the Sun. Of the many objects that orbit the Sun‚ most of the mass is contained within eight relatively solitary planets whose orbits are almost circular and lie within a nearly flat disc called the ecliptic
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the sun was quite useful. They used it to grow and dry crops‚ dry clothing‚ produce heat‚ and for light. The sun is a sphere‚ on the inside of the sun there is a continuous process of fusion in which hydrogen nuclei combine to from helium nuclei. There is less helium than that of hydrogen‚ which allows the sun to create energy. The energy is then radiated out of the surface of the sun‚ in which only a small portion is intercepted by plant earth. Just outside of the earth’s atmosphere‚ approximately
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Gas Chromatography Analysis of Product Mixtures Gas Chromatography Guidelines‚ Handout. Introduction Gas chromatography is a technique used to analyze chemical compounds that can be vaporized and separated in a gas phase column. Once separated‚ the analyzed substance is passed through a detector and data is obtained. The samples that we are going to analyze are: the EtOAc from Simple distillation‚ the Fraction 1‚ Fraction 2‚ and Fraction 3 from the Fractional Distillation. Experimental Procedure
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Although machine guns play a very large role in today’s battlefields‚ they did not really impact war until World War One. Machine gun impact during WWI was the most significant yet‚ they brought a new element to warfare. Machine guns and their affects on World War One Changed warfare as we know it. “Machine guns have long played an important role in modern warfare” (Dague‚ Everett). The machine gun has evolved since pre-WWI‚ and then made its impact in WWI and then the display of its power in WWI
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longitudinal keel; and the rigid airship‚ or zeppelin‚ in which the form is determined by a rigid structure. Technically all three classes may be called dirigible (Latin dirigere‚ "to direct‚ to steer") balloons. Equipped with a bag containing a gas such as helium or hydrogen which is elongated or streamlined to enable easy passage through the air‚ these Airships could reach speeds up to 10mph with a 5hp steam engine propeller. The first successful airship was that of the French engineer and inventor Henri
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its small gravity)‚ it has no substantial atmosphere. Its extremely thin atmosphere mostly consists of a small amount of helium and traces of sodium‚ potassium‚ and oxygen. These gases derive from the solar wind‚ radioactive decay‚ meteor impacts‚ and breakdown of Mercury’s crust. Mercury’s atmosphere is not stable and is constantly being refreshed because of its atoms escaping into space as a result of the planet’s heat. The earths atmosphere compared to mercury is much MUCH better in terms of protection
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