Question
Which piece of evidence is an indication that a chemical reaction has occurred?
Responses
melting of a substance
melting of a substance
a change in color of a substance
a change in color of a substance
freezing of a substance
freezing of a substance
boiling of a substance
Responses
melting of a substance
melting of a substance
a change in color of a substance
a change in color of a substance
freezing of a substance
freezing of a substance
boiling of a substance
Answers
GPT 3.5
a change in color of a substance
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