colorful substances
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colorful substances |
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| navigate by keyword : abstract blue chemistry chromium clock colorful colors compounds copper desk education experience experiment glass green lab laboratory nitrate orange pharmacy potassium powder reaction research scholarship school substance sulphate university yellow |
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| Colorful powder of anhydrous substances on clock glasses in a chemistry lab. Blue-copper sulphate Green-nickel nitrate Orange,Yellow-potassium cromium compounds |
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Stockphotos.ro (c) 2025. All stock photos are provided by Dreamstime and are copyrighted by their respective owners. |
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