Harvey mixes two liquids. Which observation of the new mixture most likely indicates a precipitate is forming?

A) a cloudy appearance

B) a bubble formation

C) a change in color

D) a change in odor

The observation of the new mixture that most likely indicates a precipitate is forming is A. a cloudy appearance.

Just take this to real life - when you look at the sky, and you see dark clouds up there, it means that it is likely going to rain. The same thing goes for this - if there is a cloudy appearance, it means that some sort of a precipitate (usually rain droplets) is forming.