@alexs1320: Blue should be

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RE: RE: Chemistry Quiz

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RE: Chemistry Quiz

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2017-11-18 15:30

Blue should be made by copper? https://steemit.com/science/@alexs1320/chemistry-of-sparklers

CuCl could be some kind of blue, thus I vote for Cl :)

2017-11-18 15:30

@alexs1320: Blue should be

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