according to the law of conservation of matter, the number of fe atoms needed to complete the following…

according to the law of conservation of matter, the number of fe atoms needed to complete the following reaction is:?fe + 3o₂ → 2fe₂o₃ (1 point) 1 2 3 4
Answer
Explanation:
Step1: Analyze product side Fe atoms
On the right - hand side of the reaction $2Fe_2O_3$, the number of Fe atoms is $2\times2 = 4$.
Step2: Apply conservation of matter
According to the law of conservation of matter, the number of Fe atoms on the reactant side must equal the number on the product side. So the number of Fe atoms needed on the reactant side is 4.
Answer:
4