Question
Which of these most likely represents a chemical change?
water boiling
sugars digested by saliva
mud drying to dirt
ice cream melting
water boiling
sugars digested by saliva
mud drying to dirt
ice cream melting
Answers
Answered by
GPT-5 mini
Sugars digested by saliva.
Digestion is a chemical change — enzymes break chemical bonds and form new substances (smaller sugars). The others are physical changes (phase changes or drying) where the substance’s identity stays the same.
Digestion is a chemical change — enzymes break chemical bonds and form new substances (smaller sugars). The others are physical changes (phase changes or drying) where the substance’s identity stays the same.
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