Nitrogen is the chemical element in the periodic table that has the symbol N and atomic number 7. Commonly a colorless, odorless, tasteless and mostly inert diatomic non-metal gas, nitrogen constitutes 78 percent of Earth's atmosphere and is a constituent of all living tissues. Nitrogen forms many important compounds such as amino acids, ammonia, nitric acid, and cyanides. Nitrogen - Notable characteristics. Nitrogen is a non-metal, with an electronegativity of 3.0. It has five electron ...

Including:

Nitrogen - Notable characteristics Nitrogen - Applications
Nitrogen - Molecular nitrogen gas and liquid
Nitrogen - History Nitrogen - Occurrence Nitrogen - Compounds Nitrogen - Biological role Nitrogen - Isotopes Nitrogen - Precautions

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Any explosive material has the following characteristics: It is chemically or otherwise energetically unstable. The initiation produces a sudden expansion of the material accompanied by the production of heat and large changes in pressure (and typically also a flash or loud noise) which is called the explosion. Explosive material - Chemical explosives. Explosives are classified as low or high explosives according to their rates of decomposition. Low explosives burn rapidly (or d ...

Including:

Explosive material - Chemical explosives
Explosive material - Low Explosives Explosive material - High Explosives Explosive material - Composition of the material
Explosive material - Chemical explosive reaction
Explosive material - Formation of gases Explosive material - Evolution of heat Explosive material - Rapidity of reaction Explosive material - Initiation of reaction Explosive material - Sensitiser
Explosive material - Military explosives
Explosive material - Availability and cost Explosive material - Sensitivity Explosive material - Stability Explosive material - Power Explosive material - Brisance Explosive material - Density Explosive material - Volatility Explosive material - Hygroscopicity Explosive material - Toxicity
Explosive material - Measurement of chemical explosive reaction
Explosive material - Oxygen balance OB% Explosive material - Heat of explosion Explosive material - Balancing chemical explosion equations Explosive material - Volume of products of explosion Explosive material - Explosive strength Explosive material - Example of thermochemical calculations

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The 2002 Bali Bombing occurred on October 12, 2002 in the town of Kuta on the Indonesian island of Bali, killing 202 people and injuring a further 209. It is considered the deadliest act of terrorism in Indonesian history. The majority of the dead were foreign tourists, especially Australians, but nearly one fifth were Indonesian nationals. A number of Indonesians were sentenced to death for their parts in the bombings and in October 2002 Abu Bakar Bashir, a leader of the Jemaah Islamiah organisation often accused of being behi ...

Including:

2002 Bali bombing - The attack itself 2002 Bali bombing - Suspects 2002 Bali bombing - Legal proceedings
2002 Bali bombing - Constitutional appeals

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Ammonia is a compound of nitrogen and hydrogen with the formula NH3. At standard temperature and pressure ammonia is a gas. It is toxic and corrosive to some materials, and has a characteristic pungent odor. An ammonia molecule is not flat, but has the shape of a compressed tetrahedron known as a trigonal pyramid, as would be expected from VSEPR theory. This shape gives the molecule an overall dipole moment and makes it polar so that ammonia very readily dissolves in water. The nitrogen atom in the molecule has a lon ...

Including:

Ammonia - History Ammonia - Production Ammonia - Properties
Ammonia - Acidity Ammonia - Formation of other compounds Ammonia - Ammonia as a ligand
Ammonia - Uses Ammonia - Liquid ammonia as a solvent
Ammonia - Solubility of salts Ammonia - Solutions of metals Ammonia - Redox properties of liquid ammonia
Ammonia - Detection and determination Ammonia - Safety precautions
Ammonia - Toxicity Ammonia - Household use Ammonia - Laboratory use of ammonia solutions Ammonia - Laboratory use of anhydrous ammonia gas or liquid
Ammonia - Reference Ammonia - Bibliography

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The 2002 Bali Bombing occurred on October 12, 2002 in the town of Kuta on the Indonesian island of Bali, killing 202 people and injuring a further 209. It is considered the deadliest act of terrorism in Indonesian history. The majority of the dead were foreign tourists, especially Australians, but nearly one fifth were Indonesian nationals. A number of Indonesians were sentenced to death for their parts in the bombings and in October 2002 Abu Bakar Bashir, a leader of the Jemaah Islamiah organisation often accused of being behi ...

Including:

2002 Bali bombing - The attack itself 2002 Bali bombing - Suspects 2002 Bali bombing - Legal proceedings
2002 Bali bombing - Constitutional appeals

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The Ammonium cation is a positively charged polyatomic ion of the chemical formula NH4+ and a molecular mass of 18.04, resulting from protonation of ammonia (NH3). Ammonium and aminium are also general names for positively charged (i. e. protonated) substituted amines and quaternary ammonium cations N+R4, where one or more hydrogen atoms are replaced by organic radical groups (which could be symbolized as R). The positively charged nitrogen atom th ...

Including:

Ammonium - Substituted ammonium ions Ammonium - Salts

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Any explosive material has the following characteristics: It is chemically or otherwise energetically unstable. The initiation produces a sudden expansion of the material accompanied by the production of heat and large changes in pressure (and typically also a flash or loud noise) which is called the explosion. Explosive material - Chemical explosives. Explosives are classified as low or high explosives according to their rates of decomposition. Low explosives burn rapidly (or d ...

Including:

Explosive material - Chemical explosives
Explosive material - Explosive compatibility groupings Explosive material - Low Explosives Explosive material - High Explosives Explosive material - Composition of the material
Explosive material - Chemical explosive reaction
Explosive material - Formation of gases Explosive material - Evolution of heat Explosive material - Rapidity of reaction Explosive material - Initiation of reaction Explosive material - Sensitiser
Explosive material - Military explosives
Explosive material - Availability and cost Explosive material - Sensitivity Explosive material - Stability Explosive material - Power Explosive material - Brisance Explosive material - Density Explosive material - Volatility Explosive material - Hygroscopicity Explosive material - Toxicity
Explosive material - Measurement of chemical explosive reaction
Explosive material - Oxygen balance OB% Explosive material - Heat of explosion Explosive material - Balancing chemical explosion equations Explosive material - Volume of products of explosion Explosive material - Explosive strength Explosive material - Example of thermochemical calculations

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Crop rotation is the practice of growing two (or more) dissimilar type of crops in the same space in sequence. It is one component of polyculture. Examples of types of crops that can be rotated include cereals and legumes, and deep-rooted and short-rooted plants. Crop rotation - Method and Purpose. Crop rotation is widely practiced in vegetable production, where it is possible to grow a cool-season crop (such as lettuce) in the spring, follow with a warm-season crop (such as tomatoes) in the summer, ...

Including:

Crop rotation - Method and Purpose Crop rotation - History

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Nitrogen is the chemical element in the periodic table that has the symbol N and atomic number 7. Commonly a colorless, odorless, tasteless and mostly inert diatomic non-metal gas, nitrogen constitutes 78 percent of Earth's atmosphere and is a constituent of all living tissues. Nitrogen forms many important compounds such as amino acids, ammonia, nitric acid, and cyanides. Nitrogen - Notable characteristics. Nitrogen is a non-metal, with an electronegativity of 3.0. It has five electron ...

Including:

Nitrogen - Notable characteristics Nitrogen - Applications
Nitrogen - Nitrogen Compounds Nitrogen - Molecular nitrogen gas and liquid
Nitrogen - History Nitrogen - Occurrence Nitrogen - Compounds Nitrogen - Biological role Nitrogen - Isotopes Nitrogen - Precautions

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The 2002 Bali Bombing occurred on October 12, 2002 in the town of Kuta on the Indonesian island of Bali, killing 202 people and injuring a further 209. It is considered the deadliest act of terrorism in Indonesian history. The majority of the dead were foreign tourists, especially Australians, but nearly one fifth were Indonesian nationals. A number of Indonesians were sentenced to death for their parts in the bombings and in October 2002 Abu Bakar Bashir, a leader of the Jemaah Islamiah organisation often accused of being behi ...

Including:

2002 Bali bombing - The attack itself 2002 Bali bombing - Suspects 2002 Bali bombing - Legal proceedings
2002 Bali bombing - Initial charges and trials 2002 Bali bombing - Constitutional appeals

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Hazardous Materials (HAZMAT) responders most commonly train to hazmat as it is referred to by one of two agencies; the National Fire Protection Association (NFPA), or the US Department of Transportation (DOT). The DOT breaks hazardous materials into nine classes and various divisions. Hazardous materials in transportation must be placarded. Some materials must always be placarded, others may only require placarding in certain circumstances (example, amount). Some examples of the various classes and divisions are given. If any material falls ...

See also:

Hazardous material, Hazardous material - US Department of Transportation Classes, Hazardous material - Fixed Facilities, Hazardous material - References

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• 08 Abu Abbas • 20 Queen Juliana • 28 Peter Ustinov • 30 Alistair Cooke More March 2004 deaths March 2004 - Ongoing events. EU Enlargement Exploration of Mars: Rovers Haiti Rebellion Israeli-Palestinian conflict Occupation of Iraq Same-sex marriage in the U.S. War on Terrorism March 2004 - March election results. • 07 Greece (legislative) • 14 Russia (president) • 14 Spain (legislative) â ...

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March 2004, March 2004 - Events, March 2004 - Deaths, March 2004 - Ongoing events, March 2004 - March election results, March 2004 - Related pages, March 2004 - March 31 2004, March 2004 - March 30 2004, March 2004 - March 29 2004, March 2004 - March 28 2004, March 2004 - March 27 2004, March 2004 - March 26 2004, March 2004 - March 25 2004, March 2004 - March 24 2004, March 2004 - March 23 2004, March 2004 - March 22 2004, March 2004 - March 21 2004, March 2004 - March 20 2004, March 2004 - March 19 2004, March 2004 - March 18 2004, March 2004 - March 17 2004, March 2004 - March 15 2004, March 2004 - March 14 2004, March 2004 - March 13 2004, March 2004 - March 12 2004, March 2004 - March 11 2004, March 2004 - March 10 2004, March 2004 - March 9 2004, March 2004 - March 8 2004, March 2004 - March 7 2004, March 2004 - March 6 2004, March 2004 - March 5 2004, March 2004 - March 4 2004, March 2004 - March 3 2004, March 2004 - March 2 2004, March 2004 - March 1 2004, March 2004 - Events by month

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Synthesized materials are also called artificial fertilizers, and may be described as straight, where the product predominantly contains the three primary ingredients of nitrogen (N), phosphorous (P) and potassium/potash (K), often described as NPK fertilizers. They are named or labelled according to the content of these three elements, thus a 5-10-5 fertilizer would have 10 percent phosphate in its ingredients. If nitrogen is the main element, they are often described as nitrogen fertilizers. Alternatively ...

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Fertilizer, Fertilizer - Inorganic fertilizers, Fertilizer - Organic fertilizers, Fertilizer - Environmental effects of fertilizer use, Fertilizer - Application, Fertilizer - Sources

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Fire fighting - Suppressing the fuel and the energy. The first method is to remove fuel for the fire such as cutting of the gas and moving combustible objects from the path of the fire. When the activation energy is still present, it is also useful to switch it off; this will not stop a fire, but will help controlling a starting fire and will prevent a new fire to occur. The first action is thus to "cut off the energies" such as the gas and power supply and switch off the working machines (motors). It is also important to turn off ventilation and air conditi ...

See also:

Fire fighting, Fire fighting - Risks of a fire, Fire fighting - Means to extinguish a fire, Fire fighting - Suppressing the fuel and the energy, Fire fighting - Reconnaissance and reading the fire, Fire fighting - Use of water, Fire fighting - Asphyxiating a fire, Fire fighting - Ventilation or isolation of the fire, Fire fighting - Individual action, Fire fighting - Appendix : Calculation of the amount of water required to suppress a fire in a closed volume, Fire fighting - Volume computation, Fire fighting - Thermal computation, Fire fighting - Conclusion

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Dangerous goods - Class 1: Explosives. 1.1 Explosives with a mass explosion hazard Ex: TNT, dynamite, nitroglycerine. 1.2 Explosives with a severe projection hazard. 1.3 Explosives with a fire, blast or projection hazard but not a mass explosion hazard. 1.4 Minor fire or projection hazard (includes ammunition and most consumer fireworks). 1.5 Blasting agents. 1.6 Extremely insenstive ...

See also:

Dangerous goods, Dangerous goods - Classification and labelling summary tables, Dangerous goods - Class 1: Explosives, Dangerous goods - Class 2: Gases, Dangerous goods - Class 3: Flammable liquids, Dangerous goods - Class 4: Flammable solids, Dangerous goods - Class 5: Oxidising Agents & Organic Peroxides, Dangerous goods - Class 6: Poisonous Toxic and Infectious Substances, Dangerous goods - Class 7: Radioactive Substances, Dangerous goods - Class 8: Corrosive Substances, Dangerous goods - Class 9: Miscellaneous Dangerous Substances, Dangerous goods - Other hazardous materials labels CHIP

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The decomposing crop residue from prior years is another source of fertility. Though not strictly considered "fertilizer", the distinction seems more a matter of words than reality. Although the density of nutrients in organic material is comparatively modest, they have some advantages. For one thing organic growers typically produce some or all of their fertilizer on-site, thus lowering operating costs considerably. Then there is the matter of how effective they are at promoting plant growth, chemical soil test results aside. The ans ...

See also:

Fertilizer, Fertilizer - Inorganic fertilizers, Fertilizer - Organic fertilizers, Fertilizer - Environmental effects of fertilizer use, Fertilizer - Sources

Read more here: » Fertilizer: Encyclopedia II - Fertilizer - Organic fertilizers

• 28 Gerald Anthony • 27 Umberto Agnelli • 22 Richard Biggs • 20 Len Murray • 17 Tony Randall • 17 Ezzedine Salim • 9 Alan King • 9 Akhmad Kadyrov • 8(?) Nick Berg • 7 Waldemar Milewicz Other recent deaths May 2004 - Ongoing events. Reconstruction of Iraq – Occupation & Resistance Israeli-Palestinian conflict Liberal Party of Canada scandal War on Terrorism USA 9-11 Commission Same-Sex M ...

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May 2004, May 2004 - Events, May 2004 - Deaths in May, May 2004 - Ongoing events, May 2004 - Election results in May, May 2004 - Related pages, May 2004 - May 31 2004, May 2004 - May 30 2004, May 2004 - May 29 2004, May 2004 - May 28 2004, May 2004 - May 27 2004, May 2004 - May 26 2004, May 2004 - May 25 2004, May 2004 - May 24 2004, May 2004 - May 23 2004, May 2004 - May 22 2004, May 2004 - May 21 2004, May 2004 - May 20 2004, May 2004 - May 19 2004, May 2004 - May 18 2004, May 2004 - May 17 2004, May 2004 - May 16 2004, May 2004 - May 15 2004, May 2004 - May 14 2004, May 2004 - May 13 2004, May 2004 - May 12 2004, May 2004 - May 11 2004, May 2004 - May 10 2004, May 2004 - May 9 2004, May 2004 - May 8 2004, May 2004 - May 7 2004, May 2004 - May 6 2004, May 2004 - May 5 2004, May 2004 - May 4 2004, May 2004 - May 3 2004, May 2004 - May 2 2004, May 2004 - May 1 2004, May 2004 - Events by month

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Nitric acid is made by mixing nitrogen dioxide (NO2) with water. Creating a very pure nitric acid usually involves distillation with sulfuric acid, as nitric acid forms an azeotrope with water with a composition of 68% nitric acid and 32% water. Commercial grade nitric acid solutions are usually between 52% and 68% nitric acid. Commercial production of nitric acid is via the Ostwald process after Wilhelm Ostwald. Nitric acid can be made by reacting 200 g of potassium nitrate (KNO3) in 106 ml of 96% sulfuric acid ...

See also:

Nitric acid, Nitric acid - History, Nitric acid - Chemistry, Nitric acid - Synthesis and Production, Nitric acid - Uses

Read more here: » Nitric acid: Encyclopedia II - Nitric acid - Synthesis and Production

On 7 October 2001, a 30-year old Indonesian using a false Filipino passport and a Kuwaiti on a false Canadian passport were sent to Singapore to activate a sleeper cell. According to the Singaporean government, at least eight of sleeper cell members were trained in Afghanistan, and none of them went to the local mosque or even made contact with any local Islamic organizations. The two men that came, Fathur Rahman al-Ghozi, known as Mike, and a man known as Sammy, were taken to videotape the U.S. and Australian embassies. Philippine authorities said that Al-Ghozi ha ...

See also:

Singapore embassies attack plot, Singapore embassies attack plot - Plan, Singapore embassies attack plot - Failure of plot

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The velocity of detonation of RDX at a density of 1.76 grams/cm3 is 8,750 meters per second. It is a colourless solid, of maximum theoretical density 1.82 g/cm³. It is obtained by reacting concentrated nitric acid on hexamine. (CH2)6N4 + 4HNO3 → (CH2-N-NO2)3 + 3HCHO + NH4+ + NO3- It is a heterocycle and has the molecular shape of a ring. It starts to decompose at about 170°C and melts at 204°C. Its structural formula is: hexahydro-1,3,5-trinitro-1,3,5-triazine or (CH2See also:

RDX, RDX - Properties, RDX - History

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Before his execution, some speculated McVeigh was framed, or that others were involved. Convicted co-conspirator Terry Nichols was sentenced in federal court to life in prison for his role in the crime, but at Nichols' trial, testimony suggested McVeigh had several other accomplices. McVeigh's original trial attorney wrote in a book, Others Unknown, about several other possible suspects, and continued to implicate Terry ...

See also:

Timothy McVeigh, Timothy McVeigh - Biography, Timothy McVeigh - Death, Timothy McVeigh - Alleged accomplices

Read more here: » Timothy McVeigh: Encyclopedia II - Timothy McVeigh - Alleged accomplices