A sample of Al2O3 decomposed to pure aluminum and oxygen. After decomposition,20.0 mol of Al were recovered. How many moles of Al2O3 were decomposed?

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.

the ratio of the conjugate base to the acid required to attain the desired ph.

answer carbon and three oxygen atoms;