NEON
Symbol :
Ne
Atomic number: 10
Date of Discovery: 1898
Discoverer:
Sir William Ramsay
Name
Origin:
Form the Greek word neos
(new)
Uses:
lighting
Obtained
From: liquid air
Respected
teacher, classmates
today I am going to speak about a chemical element neon.
it
will take me about 2-3 minutes.
I
am going to talk about Neon’s
history
extraction
physical properties
chemical
properties
uses
health effect
Neon
50 punkti
Autor soovib selle materjali allalaadimise eest saada 50 punkti.
~ 2 lehte
Lehekülgede arv dokumendis
2010-10-17
Kuupäev, millal dokument üles laeti
6 laadimist
Kokku alla laetud
1 arvamus
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jouneeger
Õppematerjali autor
intense heat and pressure. Petroleum is recovered mostly through oil drilling. This comes after the studies of structural geology (at the reservoir scale), sedimentary basin analysis, reservoir characterization (mainly in terms of porosity and permeable structures). It is refined and separated, most easily by boiling point, into a large number of consumer products, from petrol (or gasoline) and kerosene to asphalt and chemical reagents used to make plastics and pharmaceuticals. Petroleum is used in manufacturing a wide variety of materials, and it is estimated that the world consumes about 88 million barrels each day. The use of fossil fuels such as petroleum can have a negative impact on Earth's biosphere, releasing pollutants and greenhouse gases into the air and damaging ecosystems through events such as oil spills. Concern over the depletion of the earth's
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most notable strategic partnerships that has taken place last year. The $12bn joint venture will see the pair produce and sell sugar, energy and ethanol from sugarcane, and distribute fuels for transportation and industry from the companies' integrated distribution and retail networks in Brazil. Through the deal, Shell strengthened its whole business in biofuel and bioethanol. Sterecycle was debating whether to list in Canada or in its domestic market on the AIM exchange in London. French chemical company Rhodia's subsidiary Rhodia Energy Services has launched two biogas projects in China and Vietnam, it said on Thursday. Rhodia Energy Services will manage the design and construction of the two facilities, as well as the operations and sales of the biogas produced, it said in a statement. Rhodia has partnered with the Siyuan ethanol factory in southern China to treat waste water. The facility started up in March and will produce 150,000 cubic
Both uses are made possible because certain substances called nuclear fuels undergo fission when struck by free neutrons and in turn generate neutrons when they break apart. This makes possible a self-sustaining chain reaction that releases energy at a controlled rate in a nuclear reactor or at a very rapid uncontrolled rate in a nuclear weapon. The amount of free energy contained in nuclear fuel is millions of times the amount of free energy contained in a similar mass of chemical fuel such as gasoline, making nuclear fission a very tempting source of energy; however, the products of nuclear fission are radioactive and remain so for significant amounts of time, giving rise to a nuclear waste problem. Concerns over nuclear waste accumulation and over the destructive potential of nuclear weapons may counterbalance the desirable qualities of fission as an energy source, and give rise to ongoing political debate over nuclear power. What is radioactive decay?
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