Rust has the formula Fe2O3 and it’s made from iron metal rea…
Rust has the formula Fe2O3 and it’s made from iron metal reacting with oxygen over time. Assume you had a 2.0 g block of pure iron metal that fully oxidized to rust and the mass of that rust product was 6.5 g. What must have been the mass of oxygen initially reacting with the pure iron? *give numerical answer, no unit required