Calculate the mole fraction of water (to 3 significant figures) in a solution of water and acetone (C3H6O) where there are equal masses of both molecules present. a. 0.500.
b. 0.237.
c. 0.861.
d. 0.310.
e. 0.763.

they are both synthetic elements

explanation:

d

14 days is the half-life of phosphorus-32

i don't see a text, but i am gonna assume this *orbit* the curved path, usually elliptical, described by a planet, satellite, spaceship, etc., around a celestial body, as the sun.