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| navigate by keyword : ammonia nh3 triagonal pyramid shape one nitrogen atom hydrogen atoms chemical compound molecular chemistry security identification identity machine scanning science system formula scan structure education finger fingerprint key safety scanner single check code control electronic gas graphic human information molecule protection secure sphere bond button geometry |
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| Ammonia NH3 triagonal pyramid shape - one nitrogen atom and 3 hydrogen atoms ammonia NH3 is a chemical compound |
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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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