CHIRINO TERMINADO 99

1 Le dedico primeramente a Dios, quien me ha permitido llegar hasta este punto, el que me ha dado fortalezas para continuar estudiando, por ello, con toda la humildad que de mi corazón puede emanar.

3 NO 2 + H 2 O <--> 2 HNO 3 + NO llega al equilibrio a 300ºC contiene 0.60 moles de dióxido de nitrógeno, 0.40 moles de agua, 0.60 moles de ácido nítrico y 0.80 moles de óxido nítrico. Calcular cuántos moles de ácido nítrico deben añadirse al sistema para que la cantidad final de dióxido de nitrógeno sea de 0.90 moles. El volumen del recipiente es de 1.00L. SOLUCION:Con los moles existentes en el equilibrio podemos calcular la constante del mismo 3 NO 2 + H 2 O <--> 2HNO 3 + NO Eq (1) 0.60 0.40 0.60 0.80 K c = (0.60) 2 · (0.80) = 3.3 (0.60) 3 · (0.40)

Demostrar cuales fueron los factores bio-psico-sociales que conllevaron a Andrei Romanovich Chikatilo a ser un asesino serial.

El presente trabajo está dedicado principalmente a Dios, quien nos cuida y nos muestra el camino a seguir.

Today lithium has taken a leading role in news and technology magazines, and has even come to consider "the oil of the future"; we hear of their development projects, but without really understanding what their current or future importance is. Lithium is an alkali metal, which in the Periodic Table of the elements is in the group numbered as 1A, together with sodium, potassium, rubidium, francium and cesium. It is also characterized by being the lightest of metals, very reactive and a very good conductor of heat and electricity, because "it has the highest electrochemical potential and provides high energy density, and therefore constitutes the main component of batteries rechargeable " Regarding the extraction of this element we must consider that although it is also found in oil wells, geothermal fields, clays and oceans, the economically feasible extraction is only from minerals or brines, and obtaining it from the latter has a cost and environmental impact less than from the former. The richest deposits are found in continental salt lakes and salt flats. The most important brines (by quality and volume) are Chile (Salar de Atacama), Bolivia (Salar de Uyuni), Argentina (Salar del Hombre Muerto), in several saline lakes of the United States, China (Qinghai province) , in Tibet and in Russia. As for the reserves of lithium minerals, these are found in the United States, Australia, Canada, the Democratic Republic of Congo, Zimbabwe, China and Russia, but as mentioned, mineral extraction is more expensive and complex than brines. It is for this reason that the so-called "Triangle of Lithium" (1) has played an extremely important role. Between Argentina, Chile and Bolivia is 85% of the world's lithium reserves, reason why has been denominated for the magazine Forbes like "Saudi Arabia of lithium".

En los últimos años se han producido cambios significativos en los sistemas de producción de carne bovina en nuestro país. Estos fueron consecuencia de la irrupción de nuevas tecnologías de producto y de procesos, tales como la recría y engorde a corral, mayor utilización de la suplementación, mejores productos biológicos, implementación de planes sanitarios oficiales a nivel nacional, y en las puertas de la selección genética asistida por marcadores y la genómica.

Reduccion de costos de produccion, commodities