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Given the bright-line spectra of four elements and the spectrum of a mixture formed from two of

31. Given the bright-line spectra of four elements and the spectrum of a mixture formed from two of these elements:


Which two elements are present in this mixture? (1) A and Q (2) A and E

(3) G and Q

(4) G and E


Explanation: To do this problem correctly, we need to match lines in the known elements in our unknown mixture. As I have shown in the picture above, element A and Q match to the mixture of two elements

Answer: 1

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