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belyass
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belyass
January 2021 | 2 Respostas
a speech to be a class representative ( president)
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belyass
January 2021 | 0 Respostas
pour brûler complètement 3.0g de carbone, il faut 8.0g de dioxygène. Quelle masse de dioxyde de carbone va t il se former
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belyass
January 2021 | 0 Respostas
la combustion de 22g de propane est realisé dans 80g de dioxygene. 66g de dioxyde de carbone sont obtenues. quelle est la masse d'eau formée?
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