During the second stage of aerobic cellular respiration, which molecule combines with the products of the first stage? water
energy
oxygen
glucose

What are the choices?

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).

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