Unit 4: Carbon Nanostructures Carbon Structures: • Carbon contains six electrons with electronic structure: (1s2)‚ (2s)‚ (2px)‚ (2py)‚ (2pz). Outer s orbital together with three p orbitals form the chemical bonds of carbon with other atoms. • Conventionally‚ solid carbon has two main structures called allotropic forms: diamond and graphite: - Diamond is tetrahedrally bonded through sp3 hybrid bonds that form a 3D network. - Graphite has a layered structure with each layer called graphene formed
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IB Home Standard Level Higher Level Options Additional Resources 8.2 Photosynthesis 8.2.1 Draw and label a diagram showing the structure of a chloroplast as seen in an electron micrograph 2D Representation 3D Representation Electron Micrograph 8.2.2 State that photosynthesis consists of the light-dependent and light-independent reactions Photosynthesis is a two-step process: 1. The light dependent reactions convert the light energy into chemical energy 2. The light
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neighbours‚ Islamic fundamentalism‚ terrorism‚ Russia ’s attempts to dominate the Caucacus regions‚ oil exploitation‚ human rights‚ and international attitudes. The following discussion aims to explain the background and reasons for the perpetuation of the trouble in Chechnya‚ and explore the reasons for Russia ’s military intervention in the region. As well‚ the discussion will attempt to forecast what the future may hold for Chechnya‚ and Russia ’s relations with it. "The Chechens are an ethnically
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The Carbon Cycle is a complex series of processes through which all of the carbon atoms in existence rotate. The same carbon atoms in your body today have been used in countless other molecules since time began. The wood burned just a few decades ago could have produced carbon dioxide which through photosynthesis became part of a plant. When you eat that plant‚ the same carbon from the wood which was burnt can become part of you. The carbon cycle is the great natural recycler of carbon atoms. Unfortunately
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Curfews and Troubles Now a days‚ the rate of teenagers been harmed or got into trouble is increasing rapidly for they are having not much of a trouble to get out of their house at night. Maybe we can also put it in a way that the parents of the present society are getting weaker as time goes in controlling the actions of their children. A solution has came up to solve this problem‚ that is curfew. But a question came along‚ do curfews keep teens out of trouble? In my opinion‚ I do think that curfews
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Carbon Nanotubes Abstract Carbon nanotubes (CNTs) are a recently discovered allotrope of carbon. They take the form of cylindrical carbon molecules and have novel properties that make them potentially useful in a wide variety of applications in nanotechnology‚ electronics‚ optics‚ and other fields of materials science. They exhibit extraordinary strength and unique electrical properties‚ and are efficient conductors of heat. Inorganic nanotubes have also been synthesized. A nanotube is a member
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Biology 1010 is a course that introduces students to the basic biological phenomena in all living organisms. It focuses on the different molecular levels of organization‚ heredity in evolution‚ genetics and reproduction. Through this course‚ I was able to master three essential concepts such as Mendel’s Law of Segregation‚ enzymes‚ and photosynthesis. Gregor Mendel was an Augustinian monk that argued that parental traits are passed on to their offspring discrete “heritable factors”. Heritable factors
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offers‚ besides its aesthetic addition‚ is the sequestering of CO2‚ carbon dioxide. To elaborate this importance‚ it is fair to paint the big picture. Heat is trapped in the earth’s atmosphere due to high levels of carbon dioxide (CO2) and other heat trapping gases which ultimately prohibit the heat from being released into space. This is what has caused the virulent phenomenon call “Greenhouse Effect.” Trees naturally remove CO2 from the atmosphere during the state of photosynthesis and use
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Why the Troubles in Ireland lasted so Long and were so Bloody Angelina Trujillo Brookline College Why the Troubles in Ireland lasted so Long and were so Bloody As one of the worst conflicts in the world since the Second World War‚ Northern Ireland is one of the most studied areas in the world. It has been said that: “If all the publications‚ the explanations‚ the analyses and the ‘solutions’ to the Northern Irish ‘problem’ were put side by side they would span the
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Impact of carbon footprint assessment for the economic sector of domestic as per household usage Carbon dioxide is a greenhouse gas - it traps the sun’s heat and keeps the earth warm. Too much CO2 in the air leads to climate change‚ also known as global warming. Other greenhouse gases‚ such as methane‚ also contribute to climate change. Countries and organizations count these as part of their carbon emissions. But for individuals the most important carbon emission is carbon dioxide. It’s well
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