Question
According to the law of conservation of matter, the number of Fe atoms needed to complete the following reaction is:
?Fe+ 30½~
- 2Fe,03
(1 point)
O
1
02
3
04
?Fe+ 30½~
- 2Fe,03
(1 point)
O
1
02
3
04
Answers
GPT-5 mini
4
Balanced equation: 4 Fe + 3 O2 → 2 Fe2O3.
There are 2×2 = 4 Fe atoms in 2 Fe2O3, so 4 Fe atoms are needed on the left.
Balanced equation: 4 Fe + 3 O2 → 2 Fe2O3.
There are 2×2 = 4 Fe atoms in 2 Fe2O3, so 4 Fe atoms are needed on the left.