Which of the following is most likely NOT a chemical reaction? (A)
A white powder and a clear liquid mix and the beaker holding the mixture gets cool to the touch

(B)
A white solid and a clear liquid mix and produce a bright orange, bubbling substance

(C)
A pan containing a clear liquid is place on a hot stove and begins to bubble after a few minutes.

(D)
A blue liquid and a green solid mix and produce a purple paste