When a solid compound is formed from chemicals that are in solution, it is called a

Precipitate

Explanation:

Precipitate usually forms when two or more chemicals are added and a solid deposits at bottom of test tube or floats as chunky solid.

For example, when you put AgNO3(aqueous) + KCl(aqueous) —–> AgCl(precipitate) + KNO3(aqueous). You'll see a white percipitate form which AgCl.

Here's a pic of diff colors of ppt you can make

its going to be mutualism cuz they both benefit from the relationship.

~batmans wife dun dun

i think its 100

i hope this !