Gaseous mixtures .
A) are all heterogeneous
B) can only contain molecules
C) are all homogeneous
D) can only contain isolated atoms
E) must contain both isolated atoms and molecules

Question

Quizplus · Accepted Answer

Gaseous mixtures can be either homogeneous or heterogeneous depending on the composition and distribution of the substances present. Therefore, choice C is the best answer. Choice A is incorrect because gaseous mixtures can be either homogeneous or heterogeneous. Choice B is incorrect because gaseous mixtures can contain both molecules and atoms. Choice D is incorrect because gaseous mixtures can contain both molecules and atoms. Choice E is incorrect because gaseous mixtures can contain only molecules or only atoms.

Gaseous Mixtures