Question

Use this chemical equation to answer the question.

What will the coefficient of Fe + _0,—->Fe2 03
will show that matter is conserved in this chemical reaction?
A. 2. 1.2
B. 2, 3,2
C. 4, 1, 2
D. 4, 3, 2

Answer 1

Answer:

D. 4, 3, 2.

Explanation:

Oxygen exists as the molecule O2. So it is:

4Fe +  302  --->  2Fe2O3

Answer 2

D. 4, 3, 2. Personally I think its the best answer sis. you can never go wrong with D