Draw and label a model of the flow of energy of an ice cube dropped into a container of warm water. The ice is the system and the warm water is the surrounding. ( Can you Please draw so I can send to my teacher )

What produces wave a)sound b) heats c)transfer of energy d)vibrations

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?

Ab c or d ? i’m not sure what the answer is