Which statement is true about relative dating and radioactive dating? A. both use laboratory techniques to find an exact age
B. both use the method of superposition
C. both compare rocks to the earth layer they were found in
D. both compare the object to an event in history

You are attempting to recrystallize a crude product mixture. you add the appropriate amount of hot solvent and are allowing the solution to slowly cool to room temperature. however, at room temperature no crystals have appeared, which of the following methods should be used to induce crystallization? choose all correct answers. a) place the flask in an ice bath. b) swirl the contents of the flask. c) add a small seed crystal of the desired product. d) scratch the inside of the glassware using a stir rod. it can be multiple choices