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

Question

A.
physical change involving phase changes.
B.
chemical change involving phase changes.
C.
chemical change involving chemical reactions.
D.
physical change involving chemical reactions.

Answer 1

The correct answer is:

A. physical change involving phase changes.

In this experiment, water is heated, and some of it evaporates, which is a physical change where the liquid water turns into vapor (a phase change). There is no indication of a chemical reaction occurring.