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Don’t just tell — show! That’s what these 3 wild and crazy teachers from New York: Angela Riordan, Annette Baldwin and Anne Snyder, believe.
Many dissolving crystals form ions that migrate and diffuse in a suitable liquid medium. These released ions can recombine by attracting other oppositely charged ions to them. If the solubility of this newly formed compound is very low, a precipitate forms, indicating that ionic reaction has taken place.
In this lab, students observe ionic reactions and watch actual precipitates form, then write balanced ionic equations for the reactions observed.
Includes: copper II chloride, potassium iodide, calcium chloride, sodium sulfate, sodium hydroxide, disposable Petri dishes/20, instructions.



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