Which state of matter are the particles/molecules far apart?

Electric charge is what ? a. kinetic energy b. radiation c. discovery d. electricity

The boiling point of propanoic acid is higher than that of 1-butanol because: propanoic acid has a higher molecular weight than 1-butanol. propanoic acid is more soluble in water than 1-butanol. propanoic acid is a better hydrogen bond donor than 1-butanol. propanoic acid forms hydrogen bonded dimers and 1-butanol does not. 1-butanol forms hydrogen bonded dimers and propanoic acid does not.

This classification of drug typically changes the brain's chemistry and reduces its ability to create its own endorphins.