Which of the following is true of the figures below? a. figure i is a heterogenous mixture, because the particles can be separated and the are not uniformly distributed. figure ii is a homogenous mixture, because the particles can be separated and are uniformly distributed. b. figure i is a pure substance, because it cannot be chemically separated. figure ii is a heterogenous mixture because the particles are not uniformly distributed. c. figure i is a homogenous mixture, because the particles can be separated and are uniformly distributed. figure ii is a heterogenous mixture, because the particles can be separated and the are not uniformly distributed. d. figure i and figure ii are both pure substances, because they cannot be chemically separated.