Select all the phase changes in which the molecule's freedom of movement increases.
Melting
Evaporating
O Condensing
Freezing

Which statement justifies that phosphine (ph3) is a polar molecule?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.