[DOC] [TLE] Inert gas - Wikipedia [PAR] Purified argon and nitrogen gases are most commonly used as inert gases due to 
their high natural abundance (78% N2, 1% Ar in air) and low relative cost. [DOC] [TLE] Breathing gas - Wikipedia [PAR] A breathing gas is a mixture of gaseous chemical elements and compounds used 
for respiration. Air is the most common, and only natural, breathing gas - but a 
range of pure ..... Neon (Ne) is an inert gas sometimes used in deep commercial 
diving but is very expensive. Like helium, it is less narcotic than nitrogen, but 
unlike... [DOC] [TLE] Chemical explosive - Wikipedia [PAR] A vast majority of explosives are chemical explosives. Explosives usually have 
less potential energy than fuels, but their high rate of energy release produces a 
great blast pressure. TNT has a detonation velocity of 6,940 m/s compared to 
1,680 m/s for the detonation of a pentane-air mixture, ... A sensitiser is a 
powdered or fine particulate material that is sometimes used... [DOC] [TLE] Nitrogen, Chemical Element - reaction, water, uses, elements ... [PAR] Nitrogen is one of the most interesting of all chemical elements. ... Ammonia is 
used to make other compounds, such as ammonium sulfate ((NH 4 ) 2 SO 4 ) ... 
For example, "air" sometimes comes bubbling out of the ground near oil wells. .... 
When its temperature reaches -195.79C, liquid nitrogen changes back to a gas. [DOC] [TLE] Hydrogen, Chemical Element - reaction, water, uses, elements ... [PAR] Hydrogen is the most abundant element in the universe. ... They thought that all 
the "gases" they saw were some form of air with impurities in it. ... The man who 
gave hydrogen its name, Antoine-Laurent Lavoisier, is sometimes called the 
father of ... A type of fusion bomb fuses tritium with deuterium to make helium 
atoms:. [DOC] [TLE] Explosives Statistics - Explosive Countermeasures International [PAR] <<---Grab the frame with your mouse and drag it to the left to make this window 
larger. ... that slams against surrounding surfaces and blasts objects from its path. 
... This principle of explosive mixture of gases and vapors with air is used in all .... 
Nitroglycerin, the most powerful explosive in common use, was discovered in... [DOC] [TLE] Uses for Hydrogen - Chemistry Lessons: School for Champions by ... [PAR] Sep 15, 2015 ... The most common use of Hydrogen is in chemical processes and reactions. 
Questions you ... Hydrogen can cause a balloon to lift or float upward in air. ... 
Usually, they combine liquid hydrogen with liquid oxygen to make an explosive 
mixture. ... Hydrogen gas is sometimes used directly to create an acid. [DOC] [TLE] Important Things to Know About Landfill Gas [PAR] Ammonia and hydrogen sulfide are responsible for most of the odors at landfills. 
Methane is flammable and concentrations have sometimes exceeded explosive 
levels indoors. ... Methane and carbon dioxide make up 90 to 98% of landfill gas. 
... its usual level of 21% of the total air volume) can cause reduced coordination,... [DOC] [TLE] Types of Explosives | Scitoys [PAR] Nitrogen in the air is very stable. ... Only about 15% of the original gases combine
, so the rest of the gases are cycled ... That acid can be used to make explosives 
and fertilizer. And, when the acid reacts with yet more ammonia, we get 
ammonium nitrate, ... It is sometimes used in propellants (smokeless powders) 
instead of... [DOC] [TLE] Ammonium nitrate fertilizer isn't really a dangerous explosive (most ... [PAR] Apr 18, 2013 ... Sometimes, that process releases enough heat that it causes the whole pile to 
catch." ... the older dynamite explosives used in mining and other industries, ... 
need a physical jolt to make a great big pile of burning ammonium nitrate 
explode. ... When you light it, most of the gas flows away from the cigarette. [DOC] [TLE] Explosive material - New World Encyclopedia [PAR] Oct 11, 2013 ... F containing a secondary detonating explosive substance with its ... Note that 
many if

Question: Sometimes used to make explosives, it's the most plentiful gas in the air
Answer: Nitrogen