Utilise le tableau périodique de ton cahier "Observatoire" pour répondre à la question. Tu dois mettre une virgule dans ta réponse ainsi que deux décimales. Quelle est la masse molaire du Krypton (Kr)? Exceptionnellement, ne pas mettre les unités dans ta réponse.
Masse molaire
11th Grade
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Masse molaire
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Sarah-Maude Lavergne
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