(Encyclopedia) chemical equation, group of symbols representing a chemical reaction.
There are a number of other symbols used in chemical equations. A symbol written above or below the reaction…
Capital: Jefferson City State abbreviation/Postal code: Mo./MO Governor: Eric Greitens, R (to Jan. 2021) Lieut. Governor: Mike Parson, R (to Jan. 2021) Senators: Roy…
(Encyclopedia) heroinheroinhĕˈrəwən [key], opiate drug synthesized from morphine (see narcotic). Originally produced in 1874, it was thought to be not only nonaddictive but useful as a cure for…
(Encyclopedia)
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Atmosphere
atmosphere [Gr.,=sphere of air], the mixture of gases surrounding a celestial body with sufficient gravity to maintain it. Although some details about the…
(Encyclopedia) metal, chemical element displaying certain properties by which it is normally distinguished from a nonmetal, notably its metallic luster, the capacity to lose electrons and form a…
U.S. Department of State Background Note Index: History Economy Foreign Relations U.S. Relations HISTORYThe present constitution--which dates from 1848 and has been amended several times, most…
Biographies of U.S. representatives and senators from Illinois
Member Name Birth-Death ADAIR, Jackson Leroy 1887-1956 ADAMS, George Everett 1840-1917 ADKINS, Charles 1863-1941…
(Encyclopedia)
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MissouriMissourimĭz&oobreve;rˈē, –ə [key], one of the midwestern states of the United States. It is bordered by Illinois, Kentucky, and Tennessee, across the Mississippi…
(Encyclopedia) nucleus, in physics, the extremely dense central core of an atom.
Following the discovery of radioactivity by A. H. Becquerel in 1896, Ernest Rutherford identified two types of…
Biographies of U.S. representatives and senators from New York
Member Name Birth-Death ABZUG, Bella Savitzky 1920-1998 ACKERMAN, Gary Leonard 1942- ADAMS, Charles Henry 1824-1902…
