EducationDetermining Cations
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Does a precipitate form when metal hydroxide is added?
 
 




YES

NO




 
Is the precipitate blue?
Potassium
It does form but it's amphoteric
 


YES

NO






Copper(II)
Cobalt(II)
Purple flame on flame test
Zinc
 









Blue/green flame on flame test
No flame change on flame test
 
Green flame on confirmation test