Hace aproximadamente 3 meses, un investigador en Alaska descubrió que, debido al deshielo generado por el calentamiento global, varios segmentos del territorio comienzan a desarrollar vida (pasto, ciertos tipos de musgo) antes inexistentes en el lugar. Por lo que pidió a ingenieros de la UNAM una solución que disminuya el tiempo descongelación de los bloques de hielo. La respuesta dada fue una mezcla de nitrógeno(N)(L) al 18% de N en una solución de agua des-ionizada.
El área a cubrir es de 69347 m2, sin embargo, se requiere 30ml de la solución por cada1m2.
¿Cuánta solución deben preparar?
¿Cuánto nitrógeno deberán agregar a la solución?

Nanotechnology, the field of trying to build ultrasmall structures one atom at a time, has progressed in recent years. one potential application of nanotechnology is the construction of artificial cells. the simplest cells would probably mimic red blood cells, the body's oxygen transporters. for example, nanocontainers, perhaps constructed of carbon, could be pumped full of oxygen and injected into a person's bloodstream. if the person needed additional oxygen-due to a heart attack perhaps, or for the purpose of space travel-these containers could slowly release oxygen into the blood, allowing tissues that would otherwise die to remain alive. suppose that the nanocontainers were cubic and had an edge length of 24 nanometers. part a part complete what is the volume of one nanocontainer? (ignore the thickness of the nanocontainer's wall.) express your answer using two significant figures. v v = 1.4ă—10â’20 l previous answers correct significant figures feedback: your answer 1.3824â‹…10â’20 = 1.382ă—10â’20 l was either rounded differently or used a different number of significant figures than required for this part. if you need this result for any later calculation in this item, keep all the digits and round as the final step before submitting your answer. part b suppose that each nanocontainer could contain pure oxygen pressurized to a density of 81 g/l . how many grams of oxygen could be contained by each nanocontainer?

If oil spills continue, all of the following should be expected except (2 points) death of aquatic life. polluted groundwater. decreased soil productivity. increased global temperatures.

Two nails have identical sizes and shapes. in one nail, 20 percent of the domains are lined up. in the other nail, 80 percent of the domains are lined up. which has stronger magnetic force? first answer gets brainliest!