Homework Help: chemistry ................chemistry

Posted by Maria on Sunday, October 14, 2012 at 8:47pm.

what is the color a mixture of sodium and potassium compounds??
What is the color a mixture of sodium and potassium compounds (use the cobalt glass)??

chemistry ................chemistry - DrBob222, Sunday, October 14, 2012 at 9:48pm
A mixture of Na and K give a yellow color in the flame. The Na yellow flame completely blocks the violet from K. Using a Cobalt glass filters the yellow out and leaves a reddish color for K. Did you not see this when you did the experiment?
chemistry ................chemistry - Maria, Monday, October 15, 2012 at 12:15am
yes , i did . but i don't sure . thank you

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