Question

end of semester test: physical science a
choose the image where a chemical reaction has not taken place
eggs cooked.
marshmallows browned.
water boiled.
seeds sprout.

Explanation:

A chemical reaction forms new substances. Cooking eggs (protein denaturation), browning marshmallows (Maillard reaction), and seed growth (biochemical processes) are chemical changes. Boiling water only changes state (liquid to gas), no new substance.

Answer:

The image labeled "Water boiled" (third image) where a chemical reaction has not taken place.