Week One - Quiz Results

It's nice to revisit a subject, Chemistry in this case, and not feel like you have to learn everything from scratch (unlike TCM Theory, for example)....these concepts are familiar! It turns out my long-term memory may not be as poor as I originally thought.

I kind of guessed on the coffee question - let me talk it out here to see why I answered/guessed correctly. So it's homogenous because it's black coffee - there's no other substances mixed in there like cream, sugar or Bailey's :). It's impure because....I'm not certain on this one, but I think because not all coffee is created equally and maybe different kinds have different acidities or types of beans that can have different chemical reactions...?