Search results
Results from the WOW.Com Content Network
Nitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the Milky Way and the Solar System.
Settled in 1823, Bradford was chartered as a city in 1837 [4] and emerged as a wild oil boomtown in the Pennsylvania oil rush in the late 19th century. The area's Pennsylvania Grade crude oil has superior qualities and is free of asphaltic constituents, contains only trace amounts of sulfur and nitrogen, and has excellent characteristics for refining into lubricants.
In Pennsylvania, the valley is known by three names: (listed from north to south) the Lehigh Valley, the Lebanon Valley, and the Cumberland Valley. Rocks that characterize this region include: limestone, dolomite, slate, shale, sandstone, siltstone, and some scattered basalt.
Map of the United States with Pennsylvania highlighted. There are 56 municipalities classified as cities in the U.S. state of Pennsylvania. [1] Each city is further classified based on population, with Philadelphia being of the first class, Pittsburgh of the second class, Scranton of the second class A, and the remaining 53 cities being of the third class.
A cryogenic gas plant is an industrial facility that creates molecular oxygen, molecular nitrogen, argon, krypton, helium, and xenon at relatively high purity. [1] As air is made up of nitrogen, the most common gas in the atmosphere, at 78%, with oxygen at 19%, and argon at 1%, with trace gasses making up the rest, cryogenic gas plants separate air inside a distillation column at cryogenic ...
According to the U.S. Census Bureau, the city has a total area of 6.0 square miles (16 km 2), all land. Hazleton is located 12 miles (19 km) north of Tamaqua and 30 miles (48 km) south of Scranton/Wilkes-Barre. The city is located in Pennsylvania's ridge and valley section (on a plateau named Spring Mountain).
Map of the United States with Pennsylvania highlighted in red. Pennsylvania is a state located in the Northeastern United States.As of the 2020 U.S. census, Pennsylvania is the fifth-most populous state with 13,002,700 inhabitants [1] and the 32nd-largest by land area spanning 44,742.70 square miles (115,883.1 km 2) of land. [2]
Tyrone is a borough in Blair County, Pennsylvania, United States, located 15 miles (24 km) northeast of Altoona, on the Little Juniata River. Tyrone was of considerable commercial importance in the twentieth century. It was an outlet for the Clearfield coal fields and was noted for manufacturing paper products.