Examlex
Lead (Pb) is a main-group element.
American Designs
Architectural, fashion, or other design styles that originated in or are characteristic of the United States, reflecting its culture and history.
Slave Revolt
An armed uprising by slaves against their masters and the institution of slavery, often seeking freedom, such as the famous 1831 rebellion led by Nat Turner in Virginia.
Virginia
A state in the southeastern U.S., known for its significant history as the site of the first permanent English settlement in America at Jamestown and later as a key battleground in the Civil War.
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Q94: Use the van der Waals equation for