Por medio de la siguiente reaccion es posible efectuar la reducción del óxido de hierro (lll) para obtener hierro metálico. Fe2O3 + 3CO ➡️ 3CO2 + 2 Fe
cuántos gramos de Fe2O3 se necesitan para la producción de 25 moles de Fe?
(resultado y procedimientos por fis )​

you need to take a look at the periodic system in order to sort these elements into pairs that would most likely exhibit similar chemical properties. first, you need to find elements that are found in the same group (groups are vertical in the periodic system), and then to see whether they have the same valence number. if they meet these criteria, they will have similar properties.

the first pair: ne (neon) and kr (krypton), are noble gases found in group 8

the second pair: li (lithium) and k (potassium), found in group 1

the third pair: s (sulfur) and te (tellurium), found in group 6

i would say b

explanation:

but i think i would need more information than that