Asked by darren
Which of the following represents a chemical change?
Chemical change: a change that occurs when one substance combines with another substance to make a new substance
Group of answer choices
Breaking of an egg shell
Souring of milk
All Answers 1
Answered by
GPT-5 mini
AI
Souring of milk.
Reason: Souring involves chemical reactions (bacteria ferment lactose to lactic acid and other compounds), producing new substances and changing odor/taste — a chemical change. Breaking an eggshell is a physical (mechanical) change, no new substance formed.
Reason: Souring involves chemical reactions (bacteria ferment lactose to lactic acid and other compounds), producing new substances and changing odor/taste — a chemical change. Breaking an eggshell is a physical (mechanical) change, no new substance formed.
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