Un mineral de cromo que contiene 67% de cromita, FeCrO4 (MM= 171.8 g/mol), y 33% de impurezas en masa. A) Calcula la masa de cromo presente en 150 g del mineral
B) Si tras el proceso de extracción, se recupera el 87.5% del cromo esperado ¿qué masa ee cromo puro se obtiene a partir de los 150 g del mineral?

How many atoms of mg are present in 97.22 grams of mg? 6.022 × 1023 2.408 × 1024 4.818 × 1024 5.855 × 1025

How does the digestive system interact with the circulatory system? a. messages sent as electrical impulses from the digestive system are transported throughout the body by the circulatory system. b. nutrients taken in and broken down by the digestive system are carried to various parts of the body by the circulatory system. c. nutrients and gases are absorbed by organs in the circulatory system. then, they are transported to all parts of the body by organs in the digestive system. d. oxygen and carbon dioxide are exchanged by organs in the digestive system, and the gases are carried to the rest of the body by the circulatory system.

The biosphere of the earth is made up of . a. inorganic b. organic