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Erlenmeyer flask containing a solution of potassium permanganate (KMnO4), various flasks with transition metal salts, dry chemicals and solutions in background
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Chemical lab glassware: burette over beaker, Erlenmeyer flask with stirring rod, graduated cylinder, pipette over test tube
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A rounded glass scientific chemical flask with a long funnel neck, holding green liquid.
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Amazed student watching purple liquid mixing with red in lab at college
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Lab assistant with mask mixing blue liquid in beaker in lab at college
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A conical scientific glassware flask partly filled with blue liquid.
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Smiling handsome student in lab coat looking at camera in lab at college
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Beaker containing solution from chemical experiment with molecular model in background on lab bench
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Two students looking at green liquid and taking notes in lab at college
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Female cell biologist holding flask containing stem cells, cultivated in red growth medium
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Two students looking closely at green liquid and taking notes in lab at college
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Man pouring water from beaker in Death Valley National Park, California, USA
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Beakers with flowers and test tubes with wine for party, studio shot
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Two smiling students looking at blue liquid and taking notes in lab at college
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Man holding water in beaker in Death Valley National Park, California, USA
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A young girl holding a conical flask of blue liquid in front of an evaporation cycle illustration on a clear surface.
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