bonjour,. pourriez-vous Équilibrer les équations suivantes svp :
....Al + ....S ----> Al²S³
....S + ....O² ----> ....SO³
....Fe + ....O² -----> Fe²O³
....ZuS + ....O² -----> ....ZuO + ....SO²
....Al + ....O² ------> 2 Al²O³
4Al + ....Fe²O³ -----> ....Al²O³ + ....Fe
....Al + ....S ----> Al²S³
....S + ....O² ----> ....SO³
....Fe + ....O² -----> Fe²O³
....ZuS + ....O² -----> ....ZuO + ....SO²
....Al + ....O² ------> 2 Al²O³
4Al + ....Fe²O³ -----> ....Al²O³ + ....Fe
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