Please help fast: How many moles of oxygen gas are consumed in the production of 5.00 g of iron(III) oxide from metallic iron?

4Fe(s) + 302(g)→2Fe2O3(g)

___ mole(s) in O2

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

c-14 is carbon-14, or radiocarbon.   it is a radioactive isotope of carbon with an atomic nucleus containing 6 protons and 8 neutrons.