12. Which organelle is found in plant and animal cells and is involved in making cellular energy from respiration?

Dsolubility let me know if you have any other questions for chemistry

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).