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Hace 1 día · Hydrogen sulfide is a chemical compound with the formula H 2 S.It is a colorless chalcogen-hydride gas, and is poisonous, corrosive, and flammable, with trace amounts in ambient atmosphere having a characteristic foul odor of rotten eggs. [11] Swedish chemist Carl Wilhelm Scheele is credited with having discovered the chemical composition of purified hydrogen sulfide in 1777.
Hace 1 día · Portugal, [e] officially the Portuguese Republic, [f] is a country located on the Iberian Peninsula in Southwestern Europe, whose territory also includes the Macaronesian archipelagos of the Azores and Madeira.It features the westernmost point in continental Europe; its mainland west and south border with the North Atlantic Ocean; and in the north and east, the Portugal-Spain border, which ...
This condition will kill a associated with them yet 33 percent of the sufferers did not know that they have elevated blood pressure. Secondary hypertension is relatively uncommon, only causing 5-10 percent of high blood pressure levels cases. It may be caused by kidney disease or certain tumors. The normal range were around 120/80 or drop some ...
