Question

a pure substance is just one element, or one or elements that is bonded to another. Which of these is NOT a pure substance


gold- it's an element


oxygen-it's an element


carbon dioxide -it's a compound


koolaid- it's dissolved

Answer 1

Answer:

Sorry for the late answer, I got carried away.

Koolaid is the substance that is not pure.

Explanation:

Koolaid contains water, sugar & coloring, but is not a pure substance because each of the ingredients can differ each time it is made. it is the same throughout and can be separated, therefore it is also a homogeneous mixture.