Chemistry
Chemistry
Problem
Total number of electrons involved in change:Intuitive explanation
This is a redox reaction, and you need to track which atoms change oxidation state and by how much. Aluminum goes from 0 to +3 (losing electrons), while iron goes from +3 to 0 (gaining electrons)—count the total electrons transferred by multiplying the change per atom by how many atoms react, then verify the equation is balanced.
Intuitive explanation
This is a redox reaction, and you need to track which atoms change oxidation state and by how much. Aluminum goes from 0 to +3 (losing electrons), while iron goes from +3 to 0 (gaining electrons)—count the total electrons transferred by multiplying the change per atom by how many atoms react, then verify the equation is balanced.