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Physics LibreTexts

36.6: General Questions

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  1. When bleach removes a stain from clothing, is this a physical or chemical change?  How do you know?

  2. Vinegar and baking soda may be used as cleaners.  What is produced in this reaction that cannot be seen directly?  

  3. When household cleaners are combined, production of an invisible, odorless gas could result.  Why is the practice of combining cleaners dangerous?

  4. When heat is added to liquid water, the liquid becomes steam.  Is this a physical or chemical change?  Explain.

  5. What is the basic difference between a physical change and a chemical change?

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36.6: General Questions is shared under a CC BY license and was authored, remixed, and/or curated by LibreTexts.

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