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27. Using the bond energies determine the approximate enthalpy change for each of the following reactions: (a) H (8) + Br, (g
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Г дн.. - Ган, ...) - [s...) а) H, sə - Bэ, , , энх 19) . breactang produit АН... * дн) - 2 дни - ч 32 + 193 - (2 у 343] = - (

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