Homogeneous and heterogeneous mixtures mixture is air. In physical chemistry and materials science this refers to substances and mixtures which are in a single phase. This is in contrast to a substance that is heterogeneous. A solution has been a special type of homogeneous mixture. Solutions are homogeneous because the ratio of solute to solvent remains the same throughout the solution even if homogenized with multiple sources, and stable because the solute will not settle out after any period of time, and it cannot be removed by a filter or by centrifuge. This type of mixture is very stable, i.e., its particles do not
This Is Only a Test Only a Test" isn't without its moments of awkwardness. Whether it's piano-heavy power ballads ('College'), spoken-word verses written as diary entries ('Diary of a Teen Tragedy') or five-minute electronic tracks about not being able to participate in P.E. class ('Excuse Me, Coach'), Smoking Popes occasionally veer off their tried and true template of catchy, soulful pop-punk, and do so with mixed results." However, he noted that "there are still plenty of hooks to be found on the album, especially it its loaded first half", comparing the band to Weezer and calling the album "a mostly successful experiment." Tori of Punknews.org