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justinebeudaert
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justinebeudaert
June 2021 | 1 Respostas
Besoin d'aide urgent svpp!!!niveau 4ème 3ème.!!!!!!!!!
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justinebeudaert
June 2021 | 1 Respostas
H+ C1² ---> HC1 Cu+ 0² ---> Cu0² NO + 0² ---> NO² C4H8 + 0² ----> CO + H²O Cr²03 + Al ----> Cr+ Al²O3 equilibrer les 5 equations de reaction ?
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