Which phrase describes the mass of an ice cube?

Contained in chromosomes which are located in the nucleus of the cell.

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).

Answer ozone (o3) is made of three atoms of oxygen, it is a molecule;