Examlex
Gas hydrates are solids in which a gas is encased in a polyhedral cage formed of water molecules.One gas hydrate structure has the general formula Gx(H2O)46.Xenon forms a gas hydrate having the composition 55.90% Xe,4.93% H,and 39.17% O.What is the value of x in the xenon gas hydrate Xex(H2O)46?
End of the Cold War
The period from the late 1980s through the early 1990s marked by a thaw in relations between the Soviet Union and the United States, leading to the eventual dissolution of the Soviet Union in 1991.
Mikhail Gorbachev
The last leader of the Soviet Union, known for his reforms (Perestroika and Glasnost) which aimed to modernize the Soviet economy and society.
Central America
A region located in the southern tip of North America, comprising seven countries between Mexico and South America.
Caribbean
A region consisting of the Caribbean Sea, its islands, and the surrounding coasts, known for its diverse culture and tropical climate.
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