IChO2023 (@icho2023) 's Twitter Profile
IChO2023

@icho2023

Welcome on the official twitter page of the IChO 2023. The 55th International Chemistry Olympiad will be held in Switzerland from 16 to 25 July 2023 - #IChO2023

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linkhttp://www.icho2023.ch calendar_today26-07-2021 14:29:36

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