Why do material scientists need to understand chemistry? A. They change the composition of matter to change the properties
of matter.

B. They make materials that are used by chemists.

C. They make chemicals that can treat diseases.

D. They measure the forces that are applied to the materials they
make.

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.