Question

instructions: for each test item, identify the choice that best completes the statement or answers the question. question 13 3 pts which of the following are pure substances? homogeneous mixtures colloids solutions compounds

Explanation:

Pure substances are either elements or compounds. Solutions, colloids, and homogeneous mixtures are all mixtures and not pure substances. Compounds are made up of two or more different elements chemically combined in a fixed ratio and are pure substances.

Answer:

compounds