I believe it would be 7.731. x 10^5? That is if they want you to evaluate.
Mario places 10 mL of water in a test tube and heats the liquid over a Bunsen burner for 2 minutes. After removing the test tube from the Bunsen burner, there are 6 mL of water left in the test tube. This experiment is a good example of a <span>physical change involving phase changes. </span>
I believe the answer is B??????????? Hope this helps
~Queensupreme
