Question

Solid iron combines with oxygen gas to form solid iron(III) oxide. Which of the following equations best describes this reaction?

(A) Ir + O₂--> IrO₂
(B) 4 Fe + 3 0₂---> 2 Fe₂O3
(C) I+ 0₂ ---> 10₂
(D) 3 Ir + 0₂ -> 6 Ir₂03
Select one:
O a. A
Ob. B
O C. C
O d. D

Answer 1

B. 4 Fe + 3 0₂---> 2 Fe₂O3

Step-by-step explanation:

(A) Ir + O₂--> IrO₂ No: Ir is iridium

(B) 4 Fe + 3 0₂---> 2 Fe₂O3 Yes: Fe is iron and O is oxygen, and the equation is balanced.

(C) I+ 0₂ ---> 10₂ No: I is iodine

(D) 3 Ir + 0₂ -> 6 Ir₂03 No: I is iodine