00:01
All right, so we've been matching exercise here for these definitions for types of matter.
00:05
So we have pure substance, heterogeneous, homogeneous, and solution.
00:10
These last three terms all refer to mixtures, and the pure substance is a separate class, which is the elements and compounds.
00:18
Okay, so let's see, mixture, mixture, mixture.
00:22
So a, b, and c are also terms that all refer to mixtures.
00:26
That means pure substance by process of elimination has to be answered.
00:31
Choice d, which is true, consists of a single element or compound...