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QUESTION 5 H2 and F2 react according to the following equation, forming HF. H2 + F2 --> 2HF (AH° = -271 kJ/mol rxn) If H2(g)QUESTION 7 The sign of AH for the process Heat + 2HgO --> 2Hg + O 2 is o negative, and the process is endothermic. o positive

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H2+ F2 RHF DH = -271 kalmal DHzo a seis escothermic a heat will be seleased - a water temperature in al option A is answer c

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