1. Which of the following does NOT indicate that a chemical change may have taken place? A. fracture formation B. gas production C. precipitate formation D. energy transfer 2. What happens to matter during a chemical reaction? A. matter is neither destroyed or created. B. some matter is destroyed C. some matter is created D. some matter is destroyed and some is created.

(1) Answers

A fracture Formation . A matter is neither destroyed or created

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