electrons is closer to one or seven the higher the elements reactivity. Alkali metals contain a single electron in their outer shell which makes them highly reactive and halogens contain only seven electrons in their outer shell. Noble gases‚ such as helium‚ are not reactive because they are chemically stable and will not combine with other elements. H₂S and H₂O are molecules formed from atoms that share similar properties. While the molecular structure of these compounds looks similar they are actually
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evidence used to support the Big Bang Theory. (9 points) 1. Recession of distant galaxies noted 100 years ago and confirmed in the 1920s 2. Cosmic microwave background discovered by accident in 1964 or 65. 3. Relative abundance of hydrogen‚ helium. lithium and boron as measured in other galaxies and even our Sun and other nearby stars is as predicted from theoretical studies based on hydrogen bomb research. 2. The speed of light indicates how fast light can travel in a vacuum. (6 points)
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aimed it toward the center of the light. b.) Observe the spectrum created. c.) I then‚ repeated the same process with the light coming from the fluorescent light source. Part 2: Gas Tubes a.) I then moved to the gas tubes‚ starting with Helium. I placed myself at in front of the light tube & aimed the spectroscope for the center. b.) Repeated process with the remaining gases‚ Ne and Hg. Part 3: Flame Test a.) I turned the Bunsen burner to the desirable flame. b.) I then took
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The Monsters of Beowulf Although the 2007 film Beowulf‚ produced by Robert Zemeckis‚ was inspired by the Old English epic poem by the same name‚ the writers‚ Neil Gaiman and Roger Avary‚ altered the story in several ways to fit the big screen. Three of the most notable changes in the screenplay are the monsters‚ Grendel‚ Grendel’s mother‚ and the dragon. First of all‚ the writers of the Beowulf screenplay changed several things about Grendel. In the poem‚ Grendel is portrayed as a “man-eating
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Climate change The scientific community is in agreement that climate change is taking place‚ and the impacts are significant. Different groups have made attempts to highlight some of these effects through various media. The series Ice Age‚ produced by the Blue Sky Studios‚ highlights many issues related to climate change and the effects climate change has on our environment. After watching the series Ice Age (2002)‚ Ice Age: The Meltdown (2006) and Ice Age: Dawn of the Dinosaurs (2009)‚ there
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Players could think they’re not getting paid enough. According to Helium if one person is making millions that person is expected to play like a millionaire. When an athlete has a bad day‚ fans still know that they’re getting paid a good amount even if it wasn’t their “A” game. Associate Content states most players use
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the Panda Village offers a great opportunity to spot Ocean Park ’s avian friends high above the trees‚ as well as visit some delightful Asian Small-clawed Otters. Young and old guests alike will delight in the starring attraction at the SkyFair – a helium balloon 22 metres in diameter that will raise guests 100 metres into the air. The nearby Dolphin University‚ which also encompasses Ocean Park ’s dolphin breeding centre‚ also offers an excellent opportunity for guests‚ particularly the young and
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hydrophilic‚ insoluble molecules. Gas Chromatography is used in airports to detect bombs and is used is forensics in many different ways. It is used to analyze fibers on a person’s body and also analyze blood found at a crime scene. In gas chromatography helium is used to move a gaseous mixture through a column of absorbent material. Thin-layer Chromatography uses an absorbent material on flat glass or plastic plates. This is a simple and rapid method to check the purity of an organic compound. It is
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Picture Dictionary Susana Uribe E. Chemistry 11(1) Chemistry The scientific study of the composition‚ structure‚ and properties of matter and the changes that matter undergoes. Organic Chemistry The study of most carbon containing compounds. Inorganic Chemistry The study on non-organic substances‚ many of which have organic fragments bonded to metals (organometallics). Physical Chemistry The study of the properties and changes of matter and their relation to energy
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be inside one‚ flying into space. We’ll never be higher than our constellations‚ but we try. God help us‚ we try. The endurance of human hope has always been lost on the galaxy. The heavens look down on us in scorn. The signs come in the form of helium balloons that we have let go as children‚ advertising cigarettes and alcohol‚ candy-coated letters and poison‚ and won’t you come to me and drown yourself in something you don’t understand? Hangovers and fog lie heavy on shoulders and rooftops‚ waiting
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