Which of the following statements concerning pure substances is correct?
A) Elements, but not compounds, are pure substances.
B) A pure substance can never be separated into simpler pure substances using chemical means.
C) Pure substances cannot have a variable composition.
D) more than one correct response
E) no correct response

Question

Quizplus · Accepted Answer

A pure substance has a fixed composition and distinct properties, meaning it cannot have a variable composition. Elements and compounds are both pure substances, and compounds can be separated into simpler substances by chemical means.

Which of the Following Statements Concerning Pure Substances Is Correct