Which of the following best describes the difference between a mixture and a pure substance?

Question

A. A mixture is made up of more than one type of atom; a pure substance is made up of only one type of atom.

B. A mixture has the same properties throughout; a pure substance has the different properties throughout.

C. A mixture has different properties throughout; a pure substance has the same properties throughout.

D. A mixture is made up of only one type of atom; a pure substance is made up of more than one type of atom.

Answer 1

That looks ok to me.