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  2. Hydrazine - Wikipedia

    en.wikipedia.org/wiki/Hydrazine

    Hydrazine is an inorganic compound with the chemical formula N 2 H 4.It is a simple pnictogen hydride, and is a colourless flammable liquid with an ammonia-like odour.Hydrazine is highly hazardous unless handled in solution as, for example, hydrazine hydrate (N 2 H 4 ·xH 2 O).

  3. List of presidents of the United States by date of death

    en.wikipedia.org/wiki/List_of_presidents_of_the...

    The oldest president at the time of death was Jimmy Carter, who died at 100 years, 89 days. John F. Kennedy , assassinated at the age of 46 years, 177 days, was the youngest to have died in office; the youngest to have died by natural causes was James K. Polk , who died of cholera at the age of 53 years, 225 days.

  4. Tetranitrogen - Wikipedia

    en.wikipedia.org/wiki/Tetranitrogen

    In order to affirm the synthesis and isolation of N 4, this stream then underwent a second collision event, contacting a second target gas, O 2, reforming the N + 4 cation. [7] N 4 + O 2 → N + 4 + O − 2. The disappearance and reemergence of this "recovery peak" confirms the completion of both reactions, providing ample evidence for the ...

  5. Hydrazines - Wikipedia

    en.wikipedia.org/wiki/Hydrazines

    Hydrazines (R 2 N−NR 2) are a class of chemical compounds with two nitrogen atoms linked via a covalent bond and which carry from one up to four alkyl or aryl substituents. . Hydrazines can be considered as derivatives of the inorganic hydrazine (H 2 N−NH 2), in which one or more hydrogen atoms have been replaced by hydrocarbon grou

  6. Wikipedia:Biographical metadata - Wikipedia

    en.wikipedia.org/wiki/Wikipedia:Biographical...

    Persons can be searched by name, gender, dates and locations of birth and death, description and nationality. The tool also provides a data sheet for every person in the database which includes all metadata (Persondata, categories, authority records) from the article as well as links to corresponding entries in various online databases.

  7. Stages of human death - Wikipedia

    en.wikipedia.org/wiki/Stages_of_human_death

    Up to 13 hours after death, eyeball cooling in pigs provides a reasonable estimate of time since death. [30] After 13 hours, muscle and rectal temperatures in pigs are better estimates of time since death. [31] In dogs: what changes and when. Eye K+ decreases from 1.5 hours after death to 7 hours after death. [32]

  8. Here's the Complete List of Hurricane Names for 2024 - AOL

    www.aol.com/lifestyle/heres-complete-list...

    Here is the complete list of hurricane names for 2024, with the bolded names representing storms that have already taken place this year. Alberto. Beryl. Chris. Debby. Ernesto. Francine. Gordon ...

  9. Hydrazine sulfate - Wikipedia

    en.wikipedia.org/wiki/Hydrazine_sulfate

    Hydrazine sulfate, more properly hydrazinium hydrogensulfate, is a salt of the cation hydrazinium and the anion bisulfate (hydrogensulfate), with the formula N 2 H 6 SO 4 or more properly [N 2 H 5] + [HSO 4] −.