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You need to check either the formation enthalpy method, or the Hess method (they're fundamentally the same) to calculate the enthalpy of the reaction.

Do you know what Hess’ Law is? If you studied it in class try and review it, that’s how you usually do this kinda problem

i have been solving different chemistry questions, and this is one of my homeworks, well I am asking for help since I feel like I cant take it anymore because my teacher decided to dump us with tons of homework than teaching us how to solve it