If you were asked to choose s solvent for this experiment from the list below, which would you choose ? Justify your answers. •Carbon tetrachloride Kf = 29.8C/m. •chloroform. Kf = 4.90C/m. •Ethanol. Kf = 1.99 C/m. •Naphthalene. Kf= 6.80 C/m

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?

What is the value of the standard enthalpy of formation of an element in its most stable form?

Wind and moving water provide energy. chemical mechanical thermal none of the above