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calcium solution, burning, wooden, splint, bunsen burner flame, flame., chemistry, flame, metals, salts

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sodium solution, burning, wooden, splint, bunsen burner flame, flame., chemistry, flame, metals, salts

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cobalt solution, burning, wooden, splint, bunsen burner flame, flame., chemistry, flame, metals, salts

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copper solution, burning, wooden, splint, bunsen burner flame, flame., chemistry, flame, metals, salts

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barium solution, burning, wooden, splint, bunsen burner flame, flame., chemistry, flame, metals, salts

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copper solution, burning, wooden, splint, bunsen burner flame, flame., chemistry, flame, metals, salts

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chemical solutions, producing, blue, red, colors, black, light., drinkology, science, art

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nustar telescope, nasa, space, cosmos, exploration, research, orbit, study, x-ray, nuclear spectroscopy

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