e$.$ The average human skin cell

$30m$ in diameter

f$.$ The length of the tip of your thumb $($measured from first knuckle to the edge of your nail$)$

$2\mathrm{.}5-3cm$

Consider two molecules, $x$ and $Y.$

a$.x$ is able to dissolve in water. What does this imply about the favorability of interactions between molecules of $x$ versus interactions between $x$ and water?

b$.Y$ is unable to dissolve in water. What does this imply about the favorability of interactions between molecules of $Y$ versus interactions between $Y$ and water? Draw what happens to $Y$ in water.

$1$