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Sagot :

Réponse:

Bonjour

Explications:

A. CH4 + 2O2 → CO2 + 2H2O

B. C7H16 + 11O2 → 7CO2 + 8H2O

C. C6H12 + 9O2 → 6CO2 + 6H2O

Bon courage

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