Which of the following indicates that a chemical change has happened during cooking? a. the food darkens. b. bubbles form in boiling water. c. butter melts. d. energy is transferred from the stove to a pan.

I believe the answer would be A. The food darkens

Please let me know if i was right and Dont forget to mark me brainliest :P

Option (A) is the correct answer.

Explanation:

Physical property is defined as the property which does not bring any change in chemical composition of a substance.

For example, shape, size, mass, volume, density, etc of a substance are all physical properties.

And, a property that changes chemical composition of a substance is known as chemical property.

For example, precipitation, reactivity, toxicity etc are chemical property.

Hence, darkening of food during cooking is a chemical change.

And, transfer of energy from the stove to a pan is a process of conduction and not a chemical change.

Thus, we can conclude that out of the given options the food darkens indicates that a chemical change has happened during cooking.

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explanation:

i think the answer is c hope this