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According to the VSEPR model, the predicted molecular geometry of ammonia, NH3, is
1890s
A decade of the late 19th century known for its significant economic, social, and political changes, including the start of the Progressive Era in the United States.
Railroads
Networks of tracks on which trains operate, serving as a vital mode of transport for goods and passengers over land.
Labor Unions
Organizations that represent the collective interests of workers in negotiations with employers over wages, working conditions, and rights.
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Refers to workers in the United States, particularly those engaged in manual or industrial jobs, and their roles within the nation's workforce and economy.
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