What "new theory" says: all matter and energy in the universe is composed of incredibly tiny vibrating strings. the theory of everything the superstring theory the big bang theory the unified theory

Is a logical series of steps

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).