Mrs. Dodge's class is studying minerals. Mrs. Dodge wants her class to complete a test to find out the color of minerals found in certain rocks. Which test does Mrs. Dodge want her class to complete?
(idk why it says collage im in middle school)

A) smell test

B) taste test

C) streak test

D) hardness test

They are like other investigations? say there was a murder u have to do blood test and finger prints which run through a lab. 

Sorry i think the answer is b

Sink to the bottom. addition of potassium nitrate past it’s dissolution capacity at a particular temperature will cause the extra to just sink to the bottom of the glass.however, if you were to raise the temperature of the solution prior to dissolving it, and then slowly decrease the temperature after the dissolution, you would create a “supersaturated” solution - a solution that has more solute dissolved into it than should be allowed. if you add any extra solute past this, the entire solution would “crystallize,” and this is how you get those cool videos on youtube.

For apex it is hydroxyl