Each particle of water in an ocean wave moves in a circle true or false

The diagram below shows the different phase transitions that occur in matter. which arrow represents the transition in which dew is formed?

Consider the four elements above. which one of these elements will combine with oxygen in a 1: 1 ratio?

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?