Tuesday 22 November 2016

terminology - Why does a distinction between homogenous and heterogenous mixtures exist?


Take a known homogeneous mixture like air (oxygen and nitrogen) for example. The two have different atomic masses, so the molecular weight is different. If I let the solution sit there for a long time, eventually they should separate due to their different mass.


It seems like this logic can be generalized to every other solution, so why are there categorizations like homogeneous mixtures and heterogeneous mixtures, when they just seem to be more extreme versions of another?




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