Its chemical and physical properties are so similar to that of natural amethyst that it can not be differentiated with absolute certainty without advanced gemnological testing ( which is often cost-prohibitive ).

Its chemical composition makes it difficult to match the amber to its producers – it is most similar to the resins produced by flowering plants ; however, there are no flowering plant fossils until the Cretaceous, and they were not common until the Upper Cretaceous.

Its chemical formula is NaAlSi < sub > 2 </ sub > O < sub > 6 </ sub >· H < sub > 2 </ sub > O.

Its principles are especially important in chemical engineering.

Its breakdown products and metabolites, DDE and DDD, are also highly persistent and have similar chemical and physical properties.

Its high malleability, ductility, resistance to corrosion and most other chemical reactions, and conductivity of electricity led to many uses of gold, including electric wiring, colored-glass production and even gold leaf eating.

Its usable temperature range up to 350 ° C and chemical inertness make it a useful additive in special greases.

Its personnel are trained in the use of firearms, and the Corps has a central armoury ; personnel are also trained to handle chemical incidents, and have specialist chemical incident vehicles and equipment.

Its reaction to silicon is " plasmaless ", is purely chemical and spontaneous and is often operated in pulsed mode.

Its relative rarity on Earth, like that of helium, is due to its relative lightness, high vapor pressure at very low temperatures, and chemical inertness, all properties which tend to keep it from being trapped in the condensing gas and dust clouds which resulted in the formation of smaller and warmer solid planets like Earth.

An ammonium ion is made up of one nitrogen atom and four hydrogen atoms: Its chemical formula is ()< sup >+</ sup >.

Its chemical formula is CH < sub > 3 </ sub >( CH < sub > 2 </ sub >)< sub > 10 </ sub > CH < sub > 2 </ sub >( OCH < sub > 2 </ sub > CH < sub > 2 </ sub >)< sub > n </ sub > OSO < sub > 3 </ sub > Na.

Its name derives from its chemical structure, which consists of an amine group ( NH < sub > 2 </ sub >) linked to a catechol structure called dihydroxyphenethylamine, the decarboxylated form of dihydroxyphenylalanine ( acronym DOPA ).

Its main chemical principles are lapachol, quercetin, and other flavonoids.

Its chemical relation to tryptamine is analogous to that of amphetamine to phenethylamine, amphetamine being α-methylphenethylamine.

Its development was a major advance over previous methods of delivering hydrocyanic acid for pest control because of its improved chemical stability and the presence of a warning odorant.

Its flowers are either extracted by the labour-intensive method of enfleurage or through chemical extraction.

Its chemical constituents include methyl anthranilate, indole, benzyl alcohol, linalool, and skatole.

Its economy was limited but improved in the middle of the 19th century when some industries ( including chemical ) were established in the area.

Its poor accuracy makes it ineffectual against hardened military targets so its speculated use would be to deliver a chemical, biological or nuclear warhead against large installations or cities.

Its chemical name is

Its durability has found it many functional applications: early 20th century and some modern advertising signs, interior oven walls, cooking pots, exterior walls of kitchen appliances, cast iron bathtubs, farm storage silos, and processing equipment such as chemical reactors and pharmaceutical chemical process tanks.

Its name means " earth wolf " in the Afrikaans / Dutch language.

Its name is Latin for " water-carrier " or " cup-carrier ", and its symbol is 20px (), a representation of water.

Its Roman name was Obringa.

Its name means " pump " and it specifically represents an air pump.

Its name means " no feet " in Greek, and it represents a bird-of-paradise ( which were once believed to lack feet ).

Its name has become a byword for any and all supposed advanced prehistoric lost civilizations.

Its name is derived from the nickname for New York, the Empire State.

Its scientific name is Musa textilis.

Its name implies associations dating back to the time of Columba and, although undocumented before the 12th century, it may have served the monks of the Columban family as an ' Iona of the east ' from early times.

Its name is frequently shortened to in Japan.

Its title is a literal English translation of the German name for Mozart's Serenade No. 13 for strings in G major, Eine kleine Nachtmusik.

Its name was changed by Lysimachus to Alexandria Troas, in memory of Alexander III of Macedon ( Pliny merely states that the name changed from Antigonia to Alexandria ).

Its main creator was the Nigerian multi-instrumentalist and bandleader Fela Kuti, who gave it its name, who used it to revolutionise musical structure as well as the political context in his native Nigeria.

Its name commemorates the uprisings in East Berlin of 17 June 1953.

Its name was chosen by Queen Victoria in 1858 and, in 1871, it became the sixth province of Canada.

Its name can be connected to drum and bass or Miami Bass, whose influence can still be heard in Bass music's edgey raw energy.

Its name comes from a nightclub in London that is also called Bedrock.

Its first product was Turbo Pascal in 1983, developed by Anders Hejlsberg ( who later developed. NET and C # for Microsoft ) and before Borland acquired the product sold in Scandinavia under the name of Compas Pascal.

Its name originates from the gin's popularity in India during the British Raj and the sapphire in question is the Star of Bombay on display at the Smithsonian Institution.

Its Cornish name, Goen Bren, is first recorded in the 12th century.

Its English name, chive, derives from the French word cive, from cepa, the Latin word for onion.

Its name is Latin for " horned male goat " or " goat horn ", and it is commonly represented in the form of a sea-goat: a mythical creature that is half goat, half fish.

Its name is Latin for cross, and it is dominated by a cross-shaped asterism that is commonly known as the Southern Cross.

Its name refers to Cetus, a sea monster in Greek mythology, although it is often called ' the whale ' today.