Molecule model of Litmus in blue state, with a piece of blue litmus paper on a white plate. White is Hydrogen, black is Carbon, red is Oxygen, and bl

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Molecule model of Litmus in blue state, with a piece of blue litmus paper on a white plate. White is Hydrogen, black is Carbon, red is Oxygen, and blue is Nitrogen.

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Size: 3696px × 2448px
Photo credit: © Kim Christensen / Alamy / Afripics
License: Royalty Free
Model Released: No

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