Which of the following
subatomic particles
determine the identity of
an atom?

How do we find the answer?

As cooking food that has to go in the oven

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).

"electrical energy" transforms to "thermal energy".hope my answer has you : )