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Formaldehyde ( / fɔːrˈmældɪhaɪd / ⓘ for-MAL-di-hide, US also / fər -/ ⓘ fər-) ( systematic name methanal) is an organic compound with the chemical formula CH2O and structure H−CHO, more precisely H2C=O. The compound is a pungent, colourless gas that polymerises spontaneously into paraformaldehyde.
High-test peroxide ( HTP) is a highly concentrated (85 to 98%) solution of hydrogen peroxide, with the remainder consisting predominantly of water. In contact with a catalyst, it decomposes into a high-temperature mixture of steam and oxygen, with no remaining liquid water. It was used as a propellant of HTP rockets and torpedoes, and has been ...
Wikipedia community. The Wikipedia community, collectively and individually known as Wikipedians, is an online community of volunteers who create and maintain Wikipedia, an online encyclopedia. Since August 2012, the word "Wikipedian" has been an Oxford Dictionary entry.
One way to estimate COVID-19 deaths that includes unconfirmed cases is to use the excess mortality, which is the overall number of deaths that exceed what would normally be expected. From March 1, 2020, through the end of 2020, there were 522,368 excess deaths in the United States, or 22.9% more deaths than would have been expected in that time ...
Delhi, [a] officially the National Capital Territory ( NCT) of Delhi ( ISO: Rāṣṭrīya Rājadhānī Kṣētra Dillī ), is a city and a union territory of India containing New Delhi, the capital of India. Situated on both sides of the Yamuna river, but primarily to the west or beyond its right bank, Delhi shares borders with the state of ...
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