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Java Games: Flashcards, matching, concentration, and word search. | 
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Apologia Chemistry - Polyatomic Ions
Polyatomic ions from Module 9, from Apologia's high school chemistry course Exploring Creation With Chemistry, by Dr. Jay Wile 
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Teacher-- Chemistry, Physics, and Mathematics  |  
Citronelle High School  |  
| Citronelle, AL |  
 
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