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You have been given three solids in test tubes labeled P, Q, and R. a) Take test tube P and look carefully at the solid. Place the test tube in a holder and heat it for about a minute. Write down the changes you notice in the test tube. ________________________________________________________________________________ ________________________________________________________________________________ ________________________________________________________________________________ Repeat these instructions for test tubes Q and R: b) Test Tube Q Changes during heating in the test tube: ____________________________ ____________________________________________________________________ ____________________________________________________________________ c) Test Tube R Changes during heating in the test tube: ____________________________ ____________________________________________________________________ ____________________________________________________________________ d) What do the changes for P, Q and R have in common with each other? ____________________________________________________________________ ____________________________________________________________________ ____________________________________________________________________
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