Classify the following items based on the type of polymer they are made from: raincoats and leather shoes.
a. both are made from synthetic polymers.
b. leather shoes are made from natural polymers; raincoats are made from synthetic polymers.
c. leather shoes are made from synthetic polymers; whereas raincoats are made from natural polymers.

In which phase(s) do the molecules take the shape of the container?

Long term exposure to waves can cause sunburns and skin cancer. a) visible b) infrared c) gamma rays d) ultraviole

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.