36.6: General Questions
- Page ID
- 29329
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When bleach removes a stain from clothing, is this a physical or chemical change? How do you know?
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Vinegar and baking soda may be used as cleaners. What is produced in this reaction that cannot be seen directly?
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When household cleaners are combined, production of an invisible, odorless gas could result. Why is the practice of combining cleaners dangerous?
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When heat is added to liquid water, the liquid becomes steam. Is this a physical or chemical change? Explain.
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What is the basic difference between a physical change and a chemical change?