Answer the following questions: 3- What are the important solubility characteristics for
a solvent for crystallization of an organic solid
which is contaminated with a small amount of
impurity? Remember you want to separate the
desired solid from the contaminating impurities.

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).

"electrical energy" transforms to "thermal energy".hope my answer has you : )