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Science & NatureCation Tree
By alucero
Category: Science & Nature. Viewed 1461 times. Created November 2014.     Disclaimer.   
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Cation Logic Tree

               
 
 
Potassium, Zinc (II), Copper (II), Cobalt (II)?
 
 









 
Potassium
NO
Does a precipitate form with NaOH?
YES
Zn (II), Cu (II), Co (II)
 









 
Lilac flame? Yes!
Zn (II)
NO
Mixed with NH4OH, does the liquid change color?
YES
Cu (II), Co (II)









 
 
Blue/green flame? Yes!
Co (II)
YES
Does the color change to brown-orange?









NO
 
 
 
Green/blue flame with many sparks and blue tip? Yes!
Cu (II)









 
 
 
 
Green flame? Yes!