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Ang nitrous oxide , karaniwang kilala bilang tumatawa na gas o nitrous , ay isang chemical compound, isang oksido ng nitrogen na may formula na N2O. Sa temperatura ng kuwarto, ito ay isang walang kulay na di-nasusunog na gas, na may bahagyang metal na pabango at panlasa. Sa mataas na temperatura, ang nitrous oxide ay isang malakas na oxidizer katulad ng molekular oxygen.
Ang nitrous oxide ay may malaking paggamit ng medisina, lalo na sa operasyon at pagpapagaling ng ngipin, dahil sa pagbabawas ng anestesya at sakit.
The Enlightenment<span> (also known as the </span>Age of Enlightenment<span> or the </span>Age of Reason). <span>was an intellectual and philosophical movement which overthrew the world of ideas in Europe during the 18th century.</span>
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The Tet Offensive, a surprise attack launched by North Vietnam in the pre-dawn hours of Jan. 31, 1968, was a major turning point in the war
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The Spanish mission in the American were catholic missions established by the Spanish empire during the 16 th To 19th centuries