Hoose the best word or phrase to complete each sentence. 1.is a financial service that offers a kind of in the event of unforeseen damage, injury, or cost. 2.a is the cost of a type of insurance that is paid at regular intervals.

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?