Look carefully at the marked physiographic ocean chart. are the locations of earthquakes and volcanoes randomly scattered over the earth or do they seem to be more concentrated in certain areas. explian your reasoning.

Aroom with dimensions 7.00m×8.00m×2.50m is to be filled with pure oxygen at 22.0∘c and 1.00 atm. the molar mass of oxygen is 32.0 g/mol. how many moles noxygen of oxygen are required to fill the room? what is the mass moxygen of this oxygen?