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Warm up

Warm up. Draw a diagram that shows how a hydrogen ion is formed. Warm up answers. question. Is the chemical an acid or a base and what is its pH? Lead Nitrate A. Universal Indicator Solution B. Bromothymol blue C . Sodium Hydrogen Carbonate. hypothesis.

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Warm up

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  1. Warm up Draw a diagram that shows how a hydrogen ion is formed

  2. Warm up answers

  3. question Is the chemical an acid or a base and what is its pH? Lead Nitrate A. Universal Indicator Solution B. Bromothymol blue C. Sodium Hydrogen Carbonate

  4. hypothesis Learn a little about each chemical before you make a hypothesis

  5. Background information Lead Nitrate http://en.wikipedia.org/wiki/Lead(II)_nitrate Universal Indicator Solution http://en.wikipedia.org/wiki/Universal_indicator Bromothymol blue http://en.wikipedia.org/wiki/Bromothymol_blue Sodium Hydrogen Carbonate http://en.wikipedia.org/wiki/Sodium_hydrogen_carbonate Now make your hypotheses (plural of hypothesis)

  6. methods Pb(NO3)2 with Univerasal Indicator Solution Pb(NO3)2with Bromothymol blue Pb(NO3)2with Sodium Hydrogen Carbonate Use other indicators if needed

  7. results Record your observations in a data table. Draw a picture (or use a photo), and write a description

  8. conclusion Is Pb(NO3)2 an acid or a base? What is its pH? Scientifically, what is the reason for these observations?

  9. Cool down Why is it important to understand what the properties of Pb(NO3)2 are? What is a creative way you could apply what you learned in class today?

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