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Hace 6 horas · Properties and chemistry DDT is similar in structure to the insecticide methoxychlor and the acaricide dicofol. It is highly hydrophobic and nearly insoluble in water but has good solubility in most organic solvents, fats and oils. DDT does not occur naturally and is synthesised by consecutive Friedel–Crafts reactions between chloral (CCl 3 CHO) and two equivalents of chlorobenzene (C 6 H 5 ...
Hace 6 horas · In this research, we investigated the structural, electrical, and sensing characteristics of undoped and doped TiO2 thin films prepared through the spray pyrolysis technique, using titanium tetrachloride as the precursor material. The thin films were deposited on quartz and silicon substrates, maintaining a substrate temperature of 350 ºC, and subjected to annealing at 550 ºC for 120 min. X ...
Hace 1 día · 2:07. Meteorite From a 4.5 Billion Year Old Asteroid Holds 2,600 Compounds. Live Science. 0:43. NASA Finds Biological Compounds Essential To Life In Meteorites. Geo Beats. 0:49. Meteorites Containing Cyanide Compounds May Hold Clues To Origin Of Life On Earth. Geo Beats.
this includes extinct or mythological animals too. being a very specific animal that you have never seen someone else kin before, or the animal that feels like everyone kins. whatever animal or mix of animals you are, your valid <3
Hace 1 día · While it is too early to say for sure if emissions have peaked, China’s carbon emissions fell 3 per cent year on year in March 2024, ending a 14-month surge following the lifting of Covid-zero ...
Hace 6 horas · The last village of Chamba – Kugti. Nestled within the captivating landscapes of the Dhauladhar range in Himachal Pradesh, India, Kugti village stands at an elevation of approximately 2,500 meters (8,200 feet) above sea level, with its geographic coordinates roughly 32.4234° N latitude and 76.3319° E longitude.
Hace 6 horas · 25 December 2025, Thursday - Christmas Day. Singapore MOE School Holidays 2025. Scheduled School Holidays 2025. Youth day: TBC. Day after National Day: TBC. 5 September 2025, Friday (Tentative): Teacher’s Day. 3 October 2025, Friday (Tentative): Children’s Day (For primary only) PSLE Exam Periods.
