human
What is the coefficient in front of O2 in the balanced chemical equation Fe + O2 -> Fe2O3?
gpt
The coefficient in front of O2 is 3/2, however it can be left as 3 and a coefficient of 2 in front of Fe2O3.
Explanation: This equation is actually an unbalanced equation shown below as an example for balance of a different equation, so it's given for a demonstration of balancing, but the question is about a different equation given below it.