But however its surface rusted, the compound iron (III) oxide appears red because it absorbs the blue and green wavelengths of the light spectrum while reflecting the red wavelengths.

A multi-institutional team has directly observed electron hopping in iron oxide particles, a phenomenon that holds huge significance for a broad range of environment- and energy-related applications.

Step three Finally, divide the gram formula mass for iron by the total gram formula mass of iron (III) oxide and convert to a percentage.

Example two Calculate the mass of oxygen required to react with iron to produce 240 g of iron (III) oxide.