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

when [oh-] is 10-5  m, and [h3o+] is 10-9  m, the poh is 5 and ph is 9. again in both cases the sum of ph and poh is 14. however, the hydrogen ion concentration is not always going to be equal to exactly 1 x 10 raised to a negative number. for example, we skipped over the value of 2.0 x 10-7.

i'm assuming that it's c.) red bank..