QQuestionChemistry
QuestionChemistry
What are all the pieces of evidence that a chemical reaction has occurred?
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Answer
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Step 1I'll solve this problem by explaining the key pieces of evidence that indicate a chemical reaction has taken place.
Step 2: Color Change
A color change is often a strong indicator of a chemical reaction. When the substances involved transform and create a new substance with a different color, it suggests that chemical bonds have been broken and new bonds have formed.
Final Answer
1. Color change 2. Gas production 3. Precipitate formation 4. Temperature change 5. Energy transformations
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