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Questions and Answers
What is the nature of the changes observed in the given situations?
What is the nature of the changes observed in the given situations?
- Physical changes
- Environmental changes
- Chemical changes (correct)
- Biological changes
What is the indicator of a chemical change according to the text?
What is the indicator of a chemical change according to the text?
- Change in color (correct)
- Change in volume
- Change in state
- Change in mass
What is the purpose of the mentioned activity with the magnesium ribbon?
What is the purpose of the mentioned activity with the magnesium ribbon?
- To study the properties of magnesium
- To observe a chemical reaction (correct)
- To measure the mass of the ribbon
- To observe a physical change
What is the significance of collecting the ash formed from burning the magnesium ribbon?
What is the significance of collecting the ash formed from burning the magnesium ribbon?
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What does the quote 'Facts are not science — as the dictionary is not literature' imply?
What does the quote 'Facts are not science — as the dictionary is not literature' imply?
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