Assignments in Science Class X (Term II) 4 Carbon and its Compounds IMPORTANT NOTES 9. Unsaturated organic compounds : Organic compounds in which a double or a triple bond exists between two carbon atoms in a carbon chain‚ are called unsaturated organic compounds. 10. Hydrocarbons : Organic compounds which contain only carbon and hydrogen atoms are called hydrocarbons. 11. Straight chain hydrocarbons : Hydrocarbons‚ in which all the carbon atoms are linked to one another in a straight chain
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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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one form. Carbon is one of the elements that contain many allotropes. Each allotrope of carbon has its own different properties. The allotropes of carbon are diamond‚ graphite‚ fullerenes‚ carbon nanotubes‚ carbon nanobuds‚ amorphous carbon‚ glassy carbon‚ lonsdaleite‚ and carbon nanofoam. Diamond is the best know allotrope of carbon. It is the hardest known natural mineral which makes it very rough. In the structure of the diamond‚ each carbon atom is covalently bonded to four other carbon atoms and
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The carbon cycle shows how carbon is recycled -Carbon dioxide is taken in by plants in order to carry out photosynthesis and make food. -The carbon from the carbon dioxide is used to make carbohydrates‚ fats and proteins that make up the plant body. For example the cell wall of plants is made from cellulose - a carbohydrate. -Some of this carbon is returned into the atmosphere as carbon dioxide when the plant respires. When these plants are eaten by other animals this carbon becomes part
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The Carbon Cycle Poppy Matless Carbon is present in all living organisms. When organisms die‚ the carbon is recycled for future generations. 1. Carbon is released as CO2 via respiration and combustion 2. CO2 is absorbed by producers (grass‚ plants etc) 3. Animals feed off of the plant‚ passing on carbon throughout the food chain‚ losing some carbon as CO2 respiration. 4. When the animal dies‚ it is eaten by decomposers‚ and the carbon returns to the atmosphere 5. If decomposition
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Carbon is the fourth most abundant element found on Earth‚ and is essential to all life as we know it. It is found in all living substances‚ and is essentially the key element for life. Because the carbon atom has the ability to form bonds with up to four other atoms‚ it can help form solid minerals (such “ limestone)‚ ‘squishy’ organisms (such as plants and animals)‚ and it can be dissolved in water. Carbon is also present in rocks‚ dissolved in rivers‚ lakes and oceans‚ and is in the atmosphere
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Carbon Fiber report Table of Contents Introduction 3 Historical events of Carbon fiber 3 Properties 4 Applications 4 Conclusion 5 Bibliography 6 Introduction There are a lot of new materials that has emerged and been used by engineers and scientists such as Aerogel‚ Metal foam‚ Bioplastic‚ Carbon fiber‚ Graphene and others. This is helping engineers build all new types of machines and instruments such as touch screen mobiles‚ automobile sensors‚ computers‚ planes and a lot more. This
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http://www.ucar.edu/communications/gcip/m2ccycle/m2pdf.pdf The Carbon Cycle Importance of Carbon Cycle Carbon (C) is the fourth most abundant element in the universe and is found in all living substances as well as in many inorganic materials and is also the key element for life. The carbon cycle is the exchange of carbon among three reservoirs or storage places: the land‚ the oceans‚ and the atmosphere The atmosphere has the least amount of carbon‚ followed by the land with it plants and animals‚ also
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Chemistry Pg. 1 Carbon Dating Carbon dating is the most reliable‚ commonly used‚ and useful dating method‚ for what it can date. It is used to date late Pleistocene and Holocene artifacts and geologic events up to 50‚000 years decayed. Carbon dating has been very beneficial to the scientific world‚ because it is used in so many different fields of science‚ including archaeology‚ geology‚ oceanography‚ hydrology‚ atmospheric science‚ and paleoclimatology. The radiocarbon dating method was developed
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"A carbon fiber is a long‚ thin strand of material about 0.005-0.010 mm in diameter and composed mostly of carbon atoms. The carbon atoms are bonded together in microscopic crystals that are more or less aligned parallel to the long axis of the fiber. The crystal alignment makes the fiber incredibly strong for its size. Several thousand carbon fibers are twisted together to form a yarn‚ which may be used by itself or woven into a fabric. The yarn or fabric is combined with epoxy and wound or molded
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