Ud. analiza 1.5 kg de una muestra de agua contaminada con Cr+6 (Cromo hexavalente), causante de la muerte de peces en un lago y concluye que tiene
una concentración de 67 ppm. ¿Cuántos mg de Cr+6 (Cromo hexavalente) tiene
la muestra?

How is electrolysis most commonly used to produce an energy source? a - splitting water molecules produces oxygen, which organisms breathe to fuel their bodies. b - splitting water molecules produces hydrogen gas, which is used to power machines through hydrogen fuel cells. c - splitting carbon dioxide molecules produces coal, a form of carbon that can be burned to produce heat. d - splitting carbon dioxide molecules produces natural gas, which can be burned to generate electricity in power plants.