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CO2    
CO2
n 1: a heavy odorless colorless gas formed during respiration
and by the decomposition of organic substances; absorbed
from the air by plants in photosynthesis [synonym: {carbon
dioxide}, {CO2}, {carbonic acid gas}]

Carbonic \Car*bon"ic\, a. [Cf. F. carbonique. See {Carbon}.]
(Chem.)
Of, pertaining to, or obtained from, carbon; as, carbonic
oxide.
[1913 Webster]

{Carbonic acid} (Chem.), an acid {HO.CO.OH}, not existing
separately, which, combined with positive or basic atoms
or radicals, forms carbonates. In common language the term
is very generally applied to a compound of carbon and
oxygen, {CO2}, more correctly called {carbon dioxide}. It
is a colorless, heavy, irrespirable gas, extinguishing
flame, and when breathed destroys life. It can be reduced
to a liquid and solid form by intense pressure. It is
produced in the fermentation of liquors, and by the
combustion and decomposition of organic substances, or
other substances containing carbon. It is formed in the
explosion of fire damp in mines, and is hence called
{after damp}; it is also know as {choke damp}, and
{mephitic air}. Water will absorb its own volume of it,
and more than this under pressure, and in this state
becomes the common soda water of the shops, and the
carbonated water of natural springs. Combined with lime it
constitutes limestone, or common marble and chalk. Plants
imbibe it for their nutrition and growth, the carbon being
retained and the oxygen given out.

{Carbonic oxide} (Chem.), a colorless gas, {CO}, of a light
odor, called more correctly {carbon monoxide}. It is
almost the only definitely known compound in which carbon
seems to be divalent. It is a product of the incomplete
combustion of carbon, and is an abundant constituent of
water gas. It is fatal to animal life, extinguishes
combustion, and burns with a pale blue flame, forming
carbon dioxide.
[1913 Webster]


CO2 \CO2\ (s[=e]"[-o]*t[=oo]`), n.
the chemical formula for {carbon dioxide}, a heavy odorless
gas ({CO2}) formed during respiration and by the combustion
or decomposition of organic substances; it is absorbed from
the air by plants in photosynthesis. The formula itself,
pronounced out, is often used instead of the full name,
especially with reference to fire extinguishers using this
gas for fire suppression; as, a CO2 extinguisher.

Syn: carbon dioxide, carbonic acid gas.
[WordNet 1.5 PJC]


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  • Reaction between NaOH and CO2 - Chemistry Stack Exchange
    So I wanted to know what the reaction between sodium hydroxide and carbon dioxide can be, and upon research I got 2 answers The first one is $$\\ce{CO2 + NaOH(aq) - gt; NaHCO3(aq)}$$ and the seco
  • How much heat is needed to break CO2 down to CO?
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  • Is carbon dioxide slightly or highly soluble in water?
    Carbon dioxide content in air is only 0 03%, but it is highly soluble in water unlike oxygen and one volume of CO2 dissolves in equal volume of water, the solubility being higher at low temperature From European Environment Agency: Carbon dioxide is a colourless, odourless gas, denser than air that occurs naturally in the earth's atmosphere
  • How much CO2 is produced when burning 1GJ of Natural Gas
    Background I am trying to determine how many kg of $\\ce{CO2}$ are released when burning 1 GJ of natural gas What I've tried I have very little chemistry knowledge, but google led me to these two s
  • How can carbon dioxide be converted into carbon and oxygen?
    CO2 should be heated at room temperature so carbon becomes gaseous and oxygen becomes part of air What the hell are you talking about? That is obvious nonsense and clearly doesn't happen Wha the hell did you mean?
  • Why is carbon dioxide nonpolar? - Chemistry Stack Exchange
    I understand that polarity corresponds to an electronegativity difference and that the larger the electronegativity difference, the more polar the bond However, I have read that carbon dioxide is
  • Does CO2 dissolve in water? - Chemistry Stack Exchange
    The amount of CO2 dissolved in water is proportional to the outer pressure At 20°C, 1 liter water dissolves about 1 7 g CO2 at normal pressure (1 atm) If the pressure is twice as large, the amount of dissolved CO2 is twice as much, 3 4 g
  • Why does Co2+ have 7 electrons in the 3d orbital, and not 5 like Mn?
    Why does Co2+ have 7 electrons in the 3d orbital, and not 5 like Mn? Ask Question Asked 11 years, 3 months ago Modified 7 years, 2 months ago
  • Hybridization of carbon in CO2 - Chemistry Stack Exchange
    Carbon uses one of its non-hybridized p-atoms to bond to one oxygen, the other to bond to another oxygen These bonds are pi-bonds, they lie in the form of a cross, at right angles to each other Besides this, carbon is bonded to each of the oxygens via sigma-bonds, using its two sp-hybridized atoms
  • Why is carbon dioxide considered a Lewis acid?
    $\ce {CO2}$ is considered a Lewis acid How it is an acid? According to Lewis: “species that accept an electron pair are acids” But $\ce {CO2}$ can't accept electron pairs because oxygen and carbon





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