The mass of a deuterium nucleus 21H is less than its components masses. Calculate the mass defect in amu 0.001000 0.002389 0.003778

C. definite shape, definite volume. that is a solid.

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).