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Leading U.S. Mining State

The Question: Which U.S. state produces the most coal? The Answer: When it comes to coal mining in the United States, Wyoming leads the way. The Cowboy…

Leading Industries

Though the U.S. economy as a whole continues to expand, there are some parts of the economy that are growing and others that are shrinking. As you think about what area, called a sector, of the…

Lead, city, United States

(Encyclopedia) LeadLeadlēd [key], city (1990 pop. 3,632), Lawrence co., W S.Dak., in the Black Hills; laid out 1876 after the discovery of gold there, inc. 1890. It is the site of the famous…

Precipitates - Lead Nitrate

In this part of the precipitation lab, you will test four different solutions to see how they react with a solution of Pb(NO3)2. After you have added the Pb(NO3)2 to each solution, you will be…

Periodic Table of the Elements: Lead

(Encyclopedia) Periodic Table of the Elements: Lead Atomic Number: 82 Atomic Symbol: Pb Lead Atomic Weight: 207.2 Electron Configuration: 2 · 8 · 18 32 · 18 · 4