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Consider the following balanced chemical reaction: S8(s) + 8H2(g)8H2S (g) Hrxn = -161.6 kJ a. Is the reaction endothermic or exothermic? b. What is H

Consider the following balanced chemical reaction: S8(s) + 8H2(g)8H2S (g) Hrxn = -161.6 kJ

a. Is the reaction endothermic or exothermic?

b. What is H for the reverse reaction?

c. What is H when 15.0 g of S8 reacts with excess hydrogen gas?

d. What is H when 10.0 g of H2 reacts with excess

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