Question

Which event represents a chemical change?
A. breaking glass
B. chopping wood
C. crushing a can
D. milk turning sour
99 points please hurry i really need help!!!!!
Thanks!

Answer 1

The answer is D. Milk turning sour

A. breaking glass
B. chopping wood
C. crushing a can
D. milk turning sour

Have a nice day! :)

Answer 2

The answer is D.
All those other things are physical changes.