1 Surface chemistry can also be interpreted from a coordination chemistry approach, and processes such as ion exchange, sorption, and weathering are really ligand exchange reactions.  Coordination compounds are complexes that consist of one or more central atoms or ions with one or more attached molecules.
With more than 18,000 Starbucks locations worldwide, the coffee giant has several unusual stores that are worth a look. Author Created with Sketch. With more than 18,000 Starbucks locations worldwide, the coffee giant has several unusual stores that are worth a look.
For the moment, though, the superpower in the world of American coffee remains Starbucks, with revenues of more than $13bn and 10,924 locations in the US. Dunkinâ Donuts has just over 7,000 stores in the US, and is especially strong in the northeast and New England, particularly in Boston.