QQuestionChemistry
QuestionChemistry
What are the seven signs that a chemical change is taking place?
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Answer
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Step 1Here's a comprehensive explanation of the seven signs of a chemical change:
Step 2: Color Change
- A distinct change in color often indicates a chemical reaction is occurring - Example: Iron rusting from silver-gray to reddish-brown - The color shift represents a fundamental change in the chemical composition of the substance
Final Answer
The seven signs of a chemical change are: color change, gas production, precipitate formation, temperature change, odor change, state change, and irreversibility.
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