Suppose that you are given two unlabeled beakers. one beaker contains water, and the other beaker contains a solution of ethanol and water. how could you safely determine which beaker contains just water?

Simple distillation

Explanation:

If the contents of the two beakers are distilled, water boils at 100oc and pure water is collected. The other solution will not boil at 100oc, it will boil at a lower temperature and two fractions will be collected after simple distillation.

answer: the rate of diffusion increases with increase in temperature.

increase in temperature, increases the molecular/particles speed (kinetic energy. diffusion means movement of particles through the material.

generally, the heavier the particle the more it interacts with the environment and more the temperature matters. so higher temperature results in higher diffusion.

14 days is the half-life of phosphorus-32