Question

a mother finds her daughters mug of hot cocoa on a table an hour after she had been drinking it. as the mother pours out the cocoa, she sees brown solids in the bottom of the mug. how can this be explained? (1 point)
the cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down
the cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went up
all dissolved substances will come out of solution over time. if the mother waits long enough, then all of the powder will appear at the bottom of the mug
this would only happen if too much cocoa powder was added in the first place, because the solubility should not change

Explanation:

The solubility of cocoa in water decreases with a drop in temperature. When hot cocoa cools down, less cocoa can remain dissolved, causing some to settle at the bottom.

Answer:

The cocoa was mixed with hot water, but some cocoa settled as it cooled because the solubility went down