A weather balloon is filled at sea level with 8000 L of helium. The pressure at sea level is 1 atm and the temperature is 17 degrees Celsius. Calculate the volume of the balloon when it is at 25,000 feet where the atmospheric pressure is 0.4 atm and the temperature is -35 degrees Celsius.

answer; i believe that the correct answer is (a) potassium(k)

a  solution  is always transparent, light passes through with no scattering from solute particles which are molecule in size. the  solution  is homogeneous and does not settle out. a colloid is intermediate between asolution  and a  suspension. while asuspension  will separate out a colloid will not.

i don,t know so just answer mine

the answer is true. hope it .