CO2 is carbon dioxide. It is a gas that is essential to life on this planet. It is expelled by you every time you exhale. It is used by plants during photosynthesis, and the plants then expel oxygen.
Ariana, you will not find CO2 on the periodic table of elements as it is not an ELEMENT. It is a combination of two elements, Carbon and Oxygen
2007-08-09 14:37:45
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answer #1
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answered by dsl67 4
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Carbon Dioxide
It's a chemical compound that is created through combustion (burning). It is a common greenhouse gas which is subsequently destroying our ozone layer.
Cars running on regular gasoline create CO2 because they're burning fuel. The CO2 emission is simply a product from the oxygen reacting with the gasoline.
You'll learn a lot about this once you've taken chemistry in high school
2007-08-01 17:10:19
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answer #2
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answered by Laura W 3
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Co2 is carbon dioxide that exists within the air and is a gas. It is use during the process of photosynthesis in which plants and organic material inhale carbon dioxide and excrete oxygen into the air.
2007-08-01 17:14:57
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answer #3
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answered by A 3
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As many others have said, CO2 is carbon dioixide. In science lots of chemicals are written in a kind of shorthand notation - water is H2O, salt is NaCl, chalk is CaCO3 - all these letters and numbers represent the different things that make up the material and how many of them there are.
C is the chemical symbol for Carbon and O is the symbol for Oxygen. In CO2 there are two oxygen atoms for every one carbon atom so it's written CO2, a similar gas is carbon monoxide, this only has one oxygen atom for each carbon atom so it's written as CO.
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CO2 is one of the group of gases that are often called 'Greenhouse Gases'. Other common greenhouse gases include water vapour (H2O), methane (CH4) and nitrogen dioxide (NO2). These gases occur in small quantities in the atmosphere but they have an important role to play in keeping the planet habitable.
They possess a physical property which prevents heat escaping from Earth and into space, in effect they insulate our planet. Without any greenhouse gases at all Earth would be a very cold place and most of it would be covered in ice.
In recent years we've developed all kinds of technologies that produce greenhouse gases as a waste product. Some examples include power stations, burning fuel in motor vehicles, chemical processes and some agricultural practices.
All these processes are releasing greenhouse gases into the atmosphere and in effect they're causing the insulating layer to get thicker and so trap more heat within our atmosphere.
2007-08-02 04:40:19
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answer #4
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answered by Trevor 7
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Carbon Dioxide. It is called CO2 because there is one part Carbon and two parts oxygen.
2007-08-07 16:11:50
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answer #5
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answered by christina J 4
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CO2 is carbon dioxide and is the major product of combustion and metabolism. It is a natural constituent of air but the amount is closely balanced. If the total CO2 in the atmosphere is too high the heat can not escape from the earth and the atmosphere will get warmer over time.
2007-08-01 17:18:56
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answer #6
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answered by Bullfrog21 6
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carbon dioxide
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chemical compound, CO2, a colorless, odorless, tasteless gas that is about one and one-half times as dense as air under ordinary conditions of temperature and pressure. It does not burn, and under normal conditions it is stable, inert and nontoxic. It will however support combustion of magnesium to give magnesium oxide and carbon. Although it is not a poison, it can cause death by suffocation if inhaled in large amounts.
2007-08-01 17:08:48
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answer #7
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answered by jen4491 3
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One atom of Carbon combined chemically with two atoms of Oxygen makes one molecule of Carbon Dioxide. CO2 is a "shorthand" way to write it.
2007-08-02 02:51:38
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answer #8
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answered by Anonymous
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simply
carbon dioxide
–noun- a colorless, odorless, incombustible gas, CO2, present in the atmosphere and formed during respiration, usually obtained from coal, coke, or natural gas by combustion, from carbohydrates by fermentation, by reaction of acid with limestone or other carbonates, or naturally from springs: used extensively in industry as dry ice, or carbon dioxide snow, in carbonated beverages, fire extinguishers, etc.
2007-08-01 20:52:43
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answer #9
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answered by kool_gal_8888 2
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CO2 (or carbon dioxide) is a gas (except at extremely cold temeratures--below what we encounter on Earth). It is composed of one atom of Carbon and 2 atoms of Oxygen.
It is, among other things, the main waste product of burning fossil fuels (oil, coal, natural gas). Its also produced naturally--mainly as a part of the life cycle: Animals exhale CO2; plants absorb CO2 and convert the carbon into building material for themselves, and release the oxygen for animals to breathe.
The problem is that we're releasing a great deal of excess CO2--raising the natural level that's supposed to be in the air. And--the reason that is a problem is that CO2 traps heat--the "greenhouse effect" In effect, we're wrapping the Earth in a blanket--causing the Earth to get warmer. And that--if it goes too far--is going to disrupt every ecosystem on the planet, as well as introducing major climate changes and rises in sea levels as the warmer temperatures cause the polar ice caps to melt.
2007-08-01 20:31:22
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answer #10
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answered by Anonymous
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