16. What is the ratio of the actual yield to the theoretical yield, multiplied by 100%
a. Mole ratio
b. Percent yield
c. Avogadro yield
d. Excess yield

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).