Search results
Results From The WOW.Com Content Network
Silver phosphate is formed as a yellow solid precipitate by the reaction between a soluble silver salt, such as silver nitrate, with a soluble orthophosphate. [ 3] Its solubility product is 8.89×10 −17 mol 4 ·dm −2. [ 4][ 5] The precipitation reaction is analytically significant [ 6] and can be used in qualitative or quantitative and ...
Quran at English Wikisource. The Quran, [ c] also romanized Qur'an or Koran, [ d] is the central religious text of Islam, believed by Muslims to be a revelation directly from God ( Allah ). It is organized in 114 chapters ( surah, pl. suwer) which consist of individual verses ( ayat ). Besides its religious significance, it is widely regarded ...
Amino acids are organic compounds that contain both amino and carboxylic acid functional groups. [ 1] Although over 500 amino acids exist in nature, by far the most important are the 22 α-amino acids incorporated into proteins. [ 2] Only these 22 appear in the genetic code of life. [ 3][ 4]
Acetic acid is the second simplest carboxylic acid (after formic acid ). It is an important chemical reagent and industrial chemical across various fields, used primarily in the production of cellulose acetate for photographic film, polyvinyl acetate for wood glue, and synthetic fibres and fabrics.
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. At standard temperature and pressure, two atoms of the element bond to form N 2, a colorless and odorless diatomic gas.
Aisha bint Abi Bakr[ a] ( c. 613/614 – July 678) was Islamic prophet Muhammad 's third and youngest wife. [ 8][ 9] Little is known about her childhood. A preponderance of classical sources converge on Aisha being 6 or 7 years old at the time of her marriage, and 9 at the consummation; her age has been a source of ideological friction. [ 10]
Copper. face-centered cubic (fcc) ( cF4) Copper is a chemical element; it has symbol Cu (from Latin cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and ...
2 The Greek Letters, alpha, beta, gimmel have no meaning in Greek but the meaning of most of their Semitic equivalents is known. For example, 'aleph' means 'ox', 'bet' means 'house' and 'gimmel' means 'throw stick'. 3 Early Greek letters are very similar and sometimes identical to the West Semitic letters.