select the correct answer. which event represents a chemical change? a. breaking glass b. chopping wood c…

Brief Explanations:

A chemical change results in a new substance with different properties. Breaking glass, chopping wood, and crushing a can are physical changes as they only change the shape or form of the substances without forming new substances. Milk turning sour is a chemical change because bacteria convert lactose in milk into lactic - acid, creating a new substance.

Answer:

D. milk turning sour