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Hydrogen peroxide ( H2O2) is a nonplanar molecule with (twisted) C 2 symmetry; this was first shown by Paul-Antoine Giguère in 1950 using infrared spectroscopy. [8] [9] Although the O−O bond is a single bond, the molecule has a relatively high rotational barrier of 386 cm −1 (4.62 kJ / mol) for rotation between enantiomers via the trans ...

Walmart. Walmart Inc. ( / ˈwɔːlmɑːrt /; formerly Wal-Mart Stores, Inc.) is an American multinational retail corporation that operates a chain of hypermarkets (also called supercenters), discount department stores, and grocery stores in the United States, headquartered in Bentonville, Arkansas. [10] The company was founded by brothers Sam ...

The phrase Reagan tax cuts refers to changes to the United States federal tax code passed during the presidency of Ronald Reagan. There were two major tax cuts: The Economic Recovery Tax Act of 1981 and the Tax Reform Act of 1986. The tax cuts popularized the now infamous phrase "trickle-down economics" as it was primarily used as a moniker by ...

Lithium-ion battery. A lithium-ion or Li-ion battery is a type of rechargeable battery which uses the reversible reduction of lithium ions to store energy. The negative electrode of a conventional lithium-ion cell is typically graphite, a form of carbon. This negative electrode is sometimes called the anode as it acts as an anode during ...

Ethanol is the oldest known sedative, used as an oral general anesthetic during surgery in ancient Mesopotamia and in medieval times. [13] [14] Mild intoxication starts at a blood alcohol concentration of 0.03-0.05% and induces anesthetic coma at 0.4%. [22] However, this use carried the high risk of deadly alcohol intoxication and pulmonary ...