BaCl2 + H2SO4
giai phuong trinh hoa hoc

Ais the correct answer

Rn in the right answer

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).